What's wrong? - most people are way too far in their feelings these days. Reading some of the posts lately on SOTW, it seems that the cry-bullies who lurk around here don't want anyone offering critique, regardless of how grounded, of another person's playing. That now extends to mouthpiece refacers, apparently.
Newsflash: a lot of mouthpiece "refacing" is hokum. And there are a sizable number of mouthpiece "refacers" out there who do a sub-par work but, because it's very trendy right now, are capitalizing. I, too, have played mouthpieces that were worked on by some of the "greats" - some mentioned in this thread - that were underwhelming. Now, I didn't go bashing them publicly because I'm smart enough to know what I don't know, and I didn't know how to fully articulate my issues with the pieces in question. Kirill, on the other hand, probably has the expertise to offer accurate assessments of other refacers work, does so honestly, publicly, and with very little tact, and it isn't winning him any fans. The market will take care of him in that way - or not, if his work is really as good as he claims. Reading this thread you'd think that mouthpiece refacers never duff a rail, or add too much (or not enough) baffle, miss a tip curvature, etc. - even the greats make mistakes (human!).
Newsflash 2: a lot of mouthpiece refacing is opinion. One player's stuffy Link is another's "perfect vintage Link sound." Sakshama's idea of the "right" amount of baffle for a Link or Dukoff is probably different from my idea (or Kirill's, or Mojo's, or Ed's). Separate fact ("this table is uneven, see?") from opinion ("this Link is no good because there's too much baffle").
Final thought: if you put something into the public sphere (your playing, your refaced mouthpieces) you have to expect public feedback that isn't always grounded in reality or fair. If you lack the constitution to withstand internet randos calling your work "crap" or saying "your [sic] a terrible musician," stay home and keep your creations to yourself. Charlie Parker had a cymbal thrown at him! I'm sure if Kirill is as good as he thinks that in 5 years he'll be the only refacer in the business. Somehow I doubt it, though.