Yeah.They're default in AL games and may as well me in FLGS.
What Mistwell is referencing was from 2 years ago.
Its entirely likely and to me even probable that most characters not using feats and most campaigns use feats are both true. They are not at all at odds with each other.
The key is this, to me, there are a lot of factors that impact whether stats that count "characters" extrapolate into "games" and more to the point "campaigns."
To me the bigger factors that skew it are the existence of pick-up games and the accepted wisdom that more games tend to the lower levels - gradually getting fewer and fewer as levels increase.
I mean, how many tier-1 common pick- up games offer up pre-gens with feats at all, or allow feats for their custom characters if at all? Of those that do, how many of the characters in that pick-up choose the feared ones?
How many campaigns have characters pick feats vs ASI thru tier-1 and of those how many character make that jump that early? Etc.
So, to me, nah, jumping from the comment about charscters with feats to any conclusion about "games" with fests or further to "campaigns with feats" is not a case of having "support" for the conclusion. These are not results that follow from each other.