I admit that I was never a huge fan of how easy resetting talents was after a point in World of Warcraft, but I will definitely say that being able to swap them in any rest area meant that you could almost always have a ready chance to try out new things. Unfortunately, this also coincided with a variety of systems like Azerite armor or Covenants that are much harder to change, resulting in a situation wherein it’s easy to experiment with one thing (talent builds) but very difficult to experiment with another, discouraging you from just playing around with stuff.
Speaking personally, of course, this was never a dealbreaker for me; whether or not you can experiment with builds freely isn’t what determines my overall enjoyment of a title. But for some people I know that’s a big deal, that being able to freely try out new things is a big part of what brings them joy in the game. So how much does freedom to experiment matter to you in an MMO? Are you generally satisfied to follow known and certain paths of upgrades, or do you like being able to at least try out weird possibilities for giggles?