I disagree. I think having a base to work from is helpful, both to players and DMs.

For example I don’t want to create a pantheon of gods. I might want to create a few unique gods within my setting, and if they conflict I’ll change some rules accordingly, but I want something to build off of. Similarly if a player wants to create a paladin or cleric they can just pull from the standard list.

Also if the official lore is fun, it’s more fun to build off of. I’ll enjoy reading it more and I’ll enjoy using it.