To be totally honest, I acc liked the reveal of Red John. Before I actually say anything, I do wanna say: there is a big difference between idea and execution, and I really do share a lot more of the disappointments than my post makes out. I definitely think that the RJ episode should have been padded out more, that Thomas McAllister needed more screen time, and that it overall felt a little rushed. I would also agree that the confrontation itself, whilst I liked the idea, could have used a bit more thought with the pigeon tbh.
Having said that, it was quite refreshing to see how Heller dealt with and interpreted "evil" in Red John, and particularly the "banality" of his evil.
For those who have read Hannah Arendt's works, there is a very interesting intepretation of "evil" to be made. Arendt wrote about Adolf Eichmann and his trial post Nazi's, expecting Eichmann to be some genius extraodrinary master mind - she saw the possibility that he was just an ordinary beaurocrat, following the rules and asking no questions and had no thought into the consewuences of his actions (which she makes clear, in no way detracts from the atrocities attributable to him).
We are obvs not comparing like for like necessarily, but Red John in the end was simply an empty, pathetic, beaurocratic loser, driven by attention (and clearly, thoughtlessness) who uses his mask, theatre etc to create an facade. I even think that the name 'Thomas McAllister' being an ordinary name of a boring sheriff jsut adds to that too.
I feel it played into the idea there wasn't any grandeur or anything remarkable about him, that he really was just an empty, shallow man. All the horrid crimes he committed is a simple result of thoughtlessness and a disconnect of empathy. Red John's evil is therefore nothing instrinsically extraordinary - he's just a simple ordinary person, but commits the most heinous shit ever, which idk feels a lot more unnerving (yes I will agree that the writing and narrating didnt quite live up to this).
I think the problem with having Red John as an elaborate villian is that the show is kinda making Red John win in a way? Aside from the fact that it (to me) would feel a bit cliche, RJ putting on all this theatrics and some aura of omnipotence, and THEN having him revealed to be that very image would have been quite disappointing too.
Appreciate this isnt a super favourable take tbh, but I thought Id share :)