Level scaling monsters has always been a terrible idea used to give small bestiaries a longer shelf life for players. FFXIV doesn't have this issue and can have multiple monsters of multiple levels throughout the game. Why would I want to stay at camp bearded rock for any longer than I can to get to the next tier of monsters.

I like going from

Mouse -> Rat -> Bat -> Deer -> Crab -> Skeletons -> Dragons -> crazy stuff.

It gives us a sense of becoming more powerfull, part of what the appeal of MMO's are, making monsters artificially stronger will just make us feel like progress is blunted on our end.