Hand selection? Well... indeed. Monoboard chaos. I made it up on the spot if you want the god's honest.
But breaking it down:
Raising everything would be yikes, but solvers often choose non-SDV suited Ax to bluff. We block some straights. KJs would be better but there's only 4 of them. JTs less good because we want them to have JJ/TT. Our pairs split calling/folding. What else is there really? AK I guess. AJo without
maybe. Though specifically not blocking
combos seems a plus after this action.