the board is so dry you have to worry if opponent is suddenly ready to go all in. Maybe they have Q3 or 73, but they easily have 33 or 77. Usually if 2p is good you would get a call from villain after your raise. It might be good, but it seems just as likely we're beat.

another problem with going all in with 2p in general, is unless it was 3bet PF, you usually are beat if you are going AI. The eternal 2p question to ask when going AI: What do we beat that villain realistically has? I'd expect most people to dump 73 in the sb, though some will complete it. Some might complete Q3 if it's suited. But everyone completes 33 or 77. So it's a tough spot...