To me it depends on what kind of game you are playing in therefore the skill level of opponents you are playing against. Very good opponents but not extremely skilled opponents will know that when they are playing against someone who is near on the same level as them that yes a 5 bet highly likely means aces. I ruled out the extremely skilled bunch because those players are good enough to 4 and 5 bet
bluff well and in those circles a 5 bet does not mean aces.
However, if you are playing anything mid high stakes and down in my opinion and you get 4 bet while you have aces I think you can just jam it and not be making a mistake. For it to be a mistake your opponent would have to be 4 bet
bluffing which is usually rare and even if they are how much so you expect to get from them pot flop anyway? Usually they are not going to 4 bet bluff with 109 diamonds, flop a 10 and goes crazy with it. You much more likely will be against
hands that will not be able to find the fold button if they 4 bet so just jam it and be good with it.
Plus I did not mention anything about stack depth which is going to play a role in this. If you are playing in a tournament somewhere where you are 300BB deep and the 4 bet is only 20BB then obviously we are not shoving that and we can go ahead and do numerous moves to milk value. In that specific spot I still like 5 betting though as it will get more value in the long run by increasing the pot size. If we start the hand effectively at 60BB then I say jam the aces with a 5 bet when facing a 20BB 4 bet as 1/3rd is already in and I dont think they would be folding.