I get everything you're saying and I have no problems with critics who go against the consensus. Obviously the big budget franchise movies like Batman, Star Trek, LOTR all have problems and are far from perfect films but I think it's pretty apparent from the reviews that Armond White is a professional troll.
I think most likely it's just his schtick in an attempt to be more well known. Outside of Roger Ebert, Richard Roper and a few other bloggers I really can't think of many other film critics off the top of my head, however I do know who Armond White is and that's just from coming across his negative reviews on RT.
There's thousands of internet movie critics and you've got to do something to differentiate yourself if you want to stick out from the pack. Shock value writing is just the path Armond White has chosen.