Well, that was partially tongue-in-cheek, because one certainly continues to use barre chords. More aptly, one learns more interesting things to play than barre chords, and to use them less and less. Overuse of barre chords makes for boring rhythm playing. There is definitely a time and a place, though.
Watch a Stevie Ray Vaughan video, like his Austin City Limits show. I’d be willing to bet he uses barre chords about 10% of the time, maybe less. Not into blues? OK, let’s watch Tony Rice. Not many barre chords there. I think I caught Jimmy Page playing a barre chord once. Oh heck, you pick the player. Admittedly, those are the hot guys, and I won’t ever play like they do. But go see any good local band, and you aren’t likely to see the guitarists playing barre chords most of the time (unless you’re into garage punk).
Regardless, you have to go through the process of learning them, even if you never play them again, because they form the framework you use to see the fretboard and understand what you’re replacing them with.