Same hyperbolic argument in every thread, despite evidence not supporting it.
That originally sounded less serious than I meant. Not only does the evidence not support that theory, but actively points to the opposite - there are in fact tons of low key groups with almost no requirements at all. Hard IO requirements never kick in before 3 affixes and are only somewhat common at 4 affixes (+10). Only doing higher keys (15+) is IO a nearly universal staple for pugging.