Is progressive content or the community to blame for player skill gap?

[KarstenS]

I mention the rpg because for instance ff 15 I havent finished it yet but essentially everyone has the same path there with no skip routes there are no other routes, you have to progress from boss to boss learning from each.

Thats not correct. In FF15 you have optional Dungeons. Some of them get unlocked by beating the final boss. There are also superbosses. You don't get all 13 weapons by following the main story.

None of them are needed to finish the game.

The "clearrates" will be low as you have to find your way to beat them. The game will not tell it to you. Its not part of the "Maingame".

No difference to Ex primals and Savage.