The call vs 3-bet pre flop arguement i think depends on what stake your currently playing, which is why i said "seeing stuff like this makes me believe im not learning anything playing @ micro stakes."

that raise utg would get called by ATLEAST 6 people at micro stakes which would put u in a tough spot if u flat called along with everyone else .
versus 3 betting which would still probly get 1 extra caller, but u would be in a much better spot on the flop.