why is A5 suited a good candidate for 3-bet bluff pre-flop?

I've seen people 3-bet bluff with A3/4/5 suited preflop as its a solver approved move. But how is this a good idea? Let's say someone 2-bets with AJ/AQ/A10, and you 3-bet bluff with A5, they call, and see an A on the flop, they will likely call you down on every street (or are they assuming you have AQ/AK+ so they are going to fold top pair?)