If there are 22 left then 12K is actually slightly below average but it does not make a lot of difference tbh. We are still 30BB deep. Antes will be 50 at this point. Readless means we have to take the default player in a Pokerstars $4.50. This should not be mixed up with the default player in a $2.50 (turbo) btw. This is not a turbo structure and this has an affect on our decisions, the correct play in a $2.50 may not be correct play here. We should still be trying to make the final table at this point.
Raise/Call a shove is a far better play than open shoving. Although restealing in these is pretty rare it does occasionally happen and a reshoving range will be slightly weaker than a calling range as they have percieved fold equity. In the turbo games I have seen reshoves in this kind of spot with hands like A2 suited and T9 suited. You see this a LOT less in these games but it does still happen. You will occasionally get flat called of course but this is fine as you have position and a hand that totally dominates their flatting range. You will win more chips this way than you will by shoving, even though shoving is +EV.
With our min raise we should have 350 (about) antes in the pot, 600 in blinds and our 800 raise so a total of 1750. With around 6K their stacks are perfect to reship with loads of fold equity against a button raise. I would say that they will do this with a range of:-
88+, AJ+, KQ - obviously we crush this you can even add in some other hands that are the air in their range.
The problem is we have not seen a shove here but a weird small raise. I don"t see this being like two broadway cards very often as they should be happy to take it there. I think a lot of the middle pairs are happy to win it there as well so would shove. His range for doing this is likely TT+ and strongly weighted towards AA and KK in these. We play badly against this. If I am playing well I can fold this hand here, not easily but I can do it in game.
If we are not folding I think shoving is probably a little better than calling even some of the hands that are obviously crushed will convince themselves to call due to pot odds.