Disparaging, no way. Lacking humility, respect and the self-confidence to, as Crash Davis said in Bull Durham, "remember your cliches," absolutely. For an architect whose work is a often a very schlocky attempt to copy the old guys he is shrugging off, you'd think Fazio would at least preface a few of these comments with an "I'd like to think" or "perhaps" or some attempt to show an ounce of respect for architects who are not with the living and here to defend themselves. But gosh, even Fazio's equivalent in the art world, Thomas Kinkade, would never be so desperate as to criticize Monet or Van Gogh, would he?
Oh, and before I forget, the recent comment on The Golf Channel about Augusta being a Jones design, and really not a MacKenzie design because he was hardly there, displayed great ignorance on Fazio's part. Three MacKenzie visits to Augusta were for several weeks each (according to the club's history), a book which Fazio apparently has not had time to read. I wonder how many of his projects Fazio can name where he spent a several weeks on site, multiple times?
But to the topic at hand, here's a random sampling that apparently some might miss-read as reverence?
“I would agree in spirit with what MacKenzie said. The artistic touch is needed for the subtle adjustments and details we would want to see a first class golf design. But we’ve come a long way in this profession in seventy years. The artistic touch and feel for golfing situations will always be needed, but we’ve learned to make experience, education, and technology work for us in ways MacKenzie and his generation could scarecely have imagined.”
-Tom Fazio
In other words, I can do this stuff with a sketch pad and a fax machine! 
“there are more and better golf designers than ever in our history, and they’re building better products now than have ever been built before.” –Tom Fazio
There are certainly more designers than ever, but better? Do you really believe that Mr. Fazio? 
“When experts later this century look back and assess the past 100 years of golf architecture, their rankings will indicate that a majority of the premier courses of the twentieth century were designed in the 1990s.”
-Tom Fazio
Yep, they'll be talking about PGA National, Pinehurst #4 and Pelican Hill instead of The National, Pinehurst #2 and Somerset Hills. 
There is a concern is that these assertions will be repeated so many times by Fazio that they will come to be accepted (and repeated). That does seem to be Fazio's goal, and if you look at the famous clubs who allow his associates to consult, it appears to be working.