I'd like to quote the playtest packet:
"
Power Level. The character options you read here might be more or less powerful than options in the Player’s Handbook (2014). If a design survives playtesting, we adjust its power to the desirable level before official publication. This means an option could be more or less powerful in its final form."
That's not to say that discussion of feats being of variable desirability is of no use. (Quite the contrary, hammer this naughty word out and make sure to tell them in the survey!) Rather, it's just a gentle reminder that they do know everything isn't pitch perfect and these are not necessarily the feats' final forms.