I strongly disagree with the idea that one was not given the opportunity to play a competent and intelligent Warden.
First of all, it seems that some criticize not the Warden as a PC, but rather the concept of a blank slate silent PC. It is inevitable that a lot of head role playing would happen, that's the point. It is the case with KOTOR, with Jade Empire, with Mount and Blade, with Elder Scrolls games...etc. Heck, even some talking PCs, without some head role play, would be dull. Michael Thorton, for instance, while capable of great cunning and intelligence that is unparalleled, would be a boring ass character with no personality if you don't role play and fill in the gaps. One may find a blank slate not to their liking, and that is legitimate, but they shouldn't confuse criticizing it and criticizing a specific blank slate PC, as it's not the same issue.
But even within the game, with all role play aside, we have a number of opportunities for the Warden to be pro-active and intelligent:
- small, but to me an important thing, the Warden can be an expert potion, trap, or poison maker.
- If one invests in cunning, the Warden is able to understand certain situations or characters very pertinently.
- With certain dialogue options, the Warden can demonstrate understanding of a situation (for instance, knowing that Ostagar seems to be a lost cause way before the battle starts).
- the Warden can finance the armies they gathered.
- On a tactical level, while of course they are no tactician, we are still left with the option to choose which army to summon in Denerim, which does make a difference.
- In addition, it is the warden who decides whether to eliminate the darkspawn generals in Denerim, or head straight for the keep, pros and cons for each choice.
- the Warden can set up the defense in Redcliffe, which they don't have to do, suggesting the usage of burning oil for instance, as well as securing equipment, fighters, and morale.
- The Warden can proactively come up with the choice of acquiring werewolves, which no one tells you is an option.
- while the Warden does not really participate in Orzammar politics (and expecting them to is nonsense actually) , they can still make both sides think they are an ally and get an audience with both, to weigh one's options.
- They can make themselves chancellor to a weak Alistair. No one tells you that is an option, and if you confine yourself to what you are told, it would be Eamon as chancellor.
- The Warden can suggest marriage with Anora, again an option no one tells you is possible. Indeed, you have to persuade Anora of it.
- The Warden is also the one to come up with the idea and suggest marriage between Alistair and Anora. No one tells them to.
- They can also play Anora, by promising support, and then backstabbing her in the Landsmeet.
- The Warden can ensure a peaceful transition of power, if they get prior support and if they know which arguments to pick in the Landsmeet (you'd be surprised how many botched that part).
- They can become chancellor or Teyrn of Gwaren of their own volition, with no one telling them that they can. Indeed, they can become Prince-Consort and Teyrn of Gwaren simultaneously.
- They can engage in politics and meting out justice in Awakening, including settling disputes, dealing with opposition, and maintaining order and discipline.
- While military decisions are very limited, they can still decide where they want to concentrate their forces, which has a small effect on the battle of Amaranthine (less soldiers if you don't reinforce the city).
- The Warden can save both the city and the keep, which no one tells you outright it is an option (most people I know didn't know they could). It may seem trivial in hindsight, but when playing for the first time, it was a dilemma as you have absolutely no idea whether the Keep would hold or not. It was a judgement call on the part of the Warden, and they can be potentially right, if they were diligent enough.
These are some examples of us being able to play a Warden with some competence and intelligence, in a leadership position. Of course, the Warden doesn't come anywhere close to someone like Michael Thorton, or even Revan in KOTOR1 in a lot of respects. And yes, the Warden is forced to do idiotic things demanded by the plot, which poorly justifies them. They are far from being the perfect PCs in a perfect plot. That however does not negate what the player can do with the Warden, purely in-game. To suggest otherwise is an exaggeration that is difficult to take seriously.
As for military leadership, even wargames like Total War very poorly grasp warfare, so I am not expecting RPGs to implement it well.