There's no such thing as an objective opinion. Even if I try to handle my opinion as objectively as possible, it's still my subjective conclusion. All opinions are arguments.I'm still very surprised to read this kind of assertion on this forum. Anywhere else, I think on social networks, it would be normal, but here, on this forum, where many players have objectively pointed out flaws inherent to the game that are far from personal expectations or desires, I don't understand that, a year and a half later, one can still read that. Loving a game and spending hundreds of hours on it, as I did, does not mean that the game is flawless, perfect. I love C2077 but that doesn't stop me from recognising its many faults. The criticisms made of it are more than legitimate.
Even today, players come to this forum every day to complain about bugs or mechanics that don't work or gameplay or story. If the criticisms are sometimes still the same as when the game was released (and whatever one may say, the game has not changed much since then), in a year and a half, their formulation has evolved towards something more precise and objective. All that certainly doesn't reflect the DNA of a great game (even if some aspects of the game - story, characters, NC - are great) regardless of the personal pleasure one may derive from playing it. Apart from the false debate of whether it's an RPG or not.
To continue to say that the other's speech is purely subjective (often in order to discredit it), even though the other has given a host of objective arguments in numerous subjects on this forum for example, is to show the greatest subjectivity. Some people did criticise the game as it is (and the game as it is today is open to criticism), not what they think it could or should have been. After that, everyone has their own opinion, but also their own arguments. Both are important and often go hand in hand.
As for hoping that the game will improve with future updates and an expansion, that's just hope and new expectations, we can't tell. New content doesn't mean better game. We'll see. Will new content bring new RPG mechanics or at least improve the RPG aspect of the game ? I don't think so. So CDPR probably won't address the lack of RPG mechanics in this way.
If we want to be objective, then here's the only one objective response to the arguments you make about bugs and mechanics:
Pick any CRPG of roughly the same scale and scope, and I will, in turn, link you to hundreds if not thousands of pages tech support issues and complaints from players about bugs that "have been in the game since release."
Not all bugs are fixable. I can boot up Fallout 4 and show you some of the exact same engine bugs that existed when Morrowind released on the original Xbox. I can boot up Dragon Age Inquisition and show you the terrible stuttering and hitching that occurs on PC during cinematics to this day. I can pull up Pillars of Eternity, and show you the same bug where a buff or debuff from a spell or skill gets stuck permanently until the game is closed to Windows and restarted. Most pointedly, I can boot up The Witcher 3 and show you bugs where weapon damage does not display properly in the inventory screen, quest lines that overlap and break NPC dialogue, examples of people that cannot open the Wolf Gear chest in Kaer Morhen, playthroughs where the Hearts of Stone expansion will not start properly...
Every massive game has issues. CP2077 is no exception. It had far less intrusive bugs than TW3 had at release. (I had to restart TW3 multiple times before I finally made it through a complete playthrough.) And yet TW3 is lauded as a masterpiece and instant classic...and Cyberpunk is much more divisive.
This isn't because it's "objectively" broken and misrepresentative. It's because people didn't like the game. Everyone is welcome to their own subjective opinions.