What is it with people going nuts with A4 and A5

Playing the WSOP $25K Super Main Event. I saw 3 instances of pros going nuts with A4 or A5 (suited and unsuited) preflop. Massive 3 bet shoves (30+ BBs), crazy 5 bet jams for 80BBs, etc. The other players are not folding in this spots. It's not like they got to show their bluff shove and it worked for their image. They got snapped off.
Is every solver telling people that they need to do this?