the normal content is too easy

[hagare]

So say for sake of argument that this happens. And then other players still think it's braindead and they complain they're bored and push for it to get harder and it does. And then other players still think it's braindead and they complain they're bored and they push for it to get harder and it does.

Where is it going to end once the developers start deciding to go down this path?

when it's a souls game xD
Seriously though, normal content will always be designed for the average skill of the playerbase.