As a Roblox developer, it is currently too hard to manage which players can play my game without enabling team create and even then enabling team create is not made intuitive.
If you wanted to do the simple task of adding a player or group exclusive access to test your own product, team create is required even if the player never ever going to be able to edit the experience. In theory, you should be able to add groups, players to only be able to test without enabling team create.
If Roblox is able to address this issue, it would improve my development experience because it stops everyone wasting time trying to find a single toggle switch that everything else has been moved to the game settings menu. As well as stops yoiu from enabling unnecessary features which could require Team Create but which could be rather just be locked out, it requires the feature to be enabled.