Because it's easier to control your water retention for a 202/212 competitor, compared with a heavier open class competitor. In general, the conditioning of 202/212 competitors is much better than those of the open class.
i guess
i saw kai greene in person, he was draped in what seemed like several layers of heavy clothin g and a "hoody"
very awkward person sitting in his booth, not very approachable
sweating buckets off his face
he must have HORRIBLE HORRIBLE body odor with all that bath tub androgens pooring out of a 330lbs 5'6" body covered in 2 inches thick cotton