There must be a reason why AI has such crappy judges, but I don't know what it is.
I guess I still don't see why Kris deosn't represent, to Randy, somebody who knows who he is, musically, and who put out a CD that reflects that. Adam , yes, he's been all over the map, stylistically, and his album seems to reflect that. But, still, they praised him to the skies for what he did on Idol, and now Randy thinks he should have stuck to one narrow style. I don't recall him having a problem with that on the show.
Besides, there's professional courtesy. Kris and Adam aren't contestants on AI any more, they're professional musicians, and Randy isn't their judge. Generally, professionals don't publicly diss each other's work. I know Simon does it, but he's in a rudeness class all his own - and also, he's not a musician.
Needless to say, some praise from Randy would have helped sell both guys' albums, and he could have been a decent sort and done that. But even without that, he could have left off the criticism.