Why only in Any% Warpless we can select the character type used in the run?

iirc the original reason we ever added character classification to the boards was to promote competition for Warpless runs.

Any% isn't relevant to specify the character (at least in my opinion).

All Cups allows character switching within the run, as well as Max%.

The new 101% route allows you to change character mid run if you want so character classification might not be suitable there either, especially with the new route where Accel might be faster for the final 30 mins. I'm sure it can be added if enough people want it but two characters might just look silly on the layout.