1 -> The issue is as soon as gear out passes the content mechanics don't matter unless they are instance death and people complain about one mistake and getting KOed.
Look at the 1st 24 men. Last fight where if people don't do Mechanics they wipe, Otherwise mechanics don't matter at all.

2-> The problem here is people get used to content being stupid easy because they are so over geared when they come up against content with a min ilevel it's too hard when they are just at the min.
There is content with min ilevel Go in with a group just at the min. Now go into content with a min ilevel where everyone is that same ilevel and you will find it a lot harder not because you got worse but because you are used to being over geared.

3-> Mentor status, It's just broken but they can't really fix it because some people are working on the mount.