This is absolutely not involved with anything in the fact "Inflexibility on mapping".
Tsukuyomi wrote:I‘m afraid that mapping become more and more inflexible
At first: Why has the Diff Name(s) to be changed? I agree with them if they are Insane-related like https://osu.ppy.sh/s/118869 That's pretty well used and even have a short description which Insane is easier/harder.
The Name Spread looks immense inconsistent due the transition from Normal > Hard.