The cyberpsycho quest line is supported through a number of in world things - Mike on MorroRock talks about it, there are news articles about it (one about a mall, and another about a conference) and numerous bits of in world text about the problem (not the case related info, other shards). These things constantly ask the question of "is cyberpsychosis real?".
Undertaking the quests is about that question and what you decide the answer is.
There is no long investigation cycle because as Regina tells you when she contacts you "I just heard...", the event, with the psycho is happening now. If you wait, MaxTac may well turn up and "solve" the problem. If you are going to help her with her investigation/treatment plan you need to act "now".
Now I'm not going to disagree that the static nature of these fights and how they fit in the game could be better, and nor do I disagree that the gig thing couldn't be better either. But ignoring those wider problems with gigs, these fights are appropriately (and arguably well) supported in the game.
Now as I mentioned in another of these threads, I do feel that this quest is not over. Regina herself says "for now" when you have dealt with all 17. It is one of several gig quests that stands open and waiting to have more content added in the future, and many of these quests deal with similar themes - making them ideal to combine into a larger DLC mission.
They question whether those actually exist or just an illusion of the chip which lead nowhere.
And you should question this - if you check the locations before you have the chip the art doesn't exist. It seems only V and Johnny can see them. Most of them are in specific story related places and their Tarot symbolism has meaning to the events that take place there. (The fact that Death is on Embers is one of the simplest, but strongest, examples of this.) Misty even makes a relevant comment when she sends you to look for them all about that connection.
There are other things in the game that you should probably question the reality of as well....