no it wouldn't enhance the game, it would make it boring after a while, all the buildings empty, nothing left to loot, no more enemies to kill, bethesda didn't get huge by making game that have a hard ending with nothing left to do, player freedom is what they're about an todd howard has said that over and over again, you want to control everyone elses game experience and make it the same as yours, you have the option to "not go back and reloot anything", i don't want a map with no enemies and no more loot, there is nothing good about that at all, there are some locations that don't respawn, not a lot but there are some, boston library, posiedon energy, those spots don't seem to respawn, fort hagen, etc but to have every spot like that is not good, cause literaly the map would eventualy be totally empty and for people wanting to keep enjoying the game at higher levels especially that would break that experience totally.