i think he expects you to have <AT and call. one thing is 22/18 is less likely to overbet as a bluff than like 30/15, and i don't see overbet bluffs much either way at (ub) 1-2. the other is if a thinking player is playing a "cally" villain...they prob expect a call. also there aren't many draws out. and if i knew about the T8dd hand i would raise the flop smallish and call all in.