That isn't true. Dedicated bodybuilders, starting more commonly ~5 years ago, decided that PCT wasn't worth it. Instead of typical 16-20 week cycles followed by 4-6 weeks of PCT, they adjust the dose between supraphysiological and (generally) top-of-normal, i.e.: blast and cruise.

It's not because they couldn't recover, it's because they don't want to or see the point.