Is there a reason userpatch isn't allowed on the official runs?

I still have the cd version but it's just easier for me to launch through voobly on the userpatch 1.4 version than to switch to 1.0c, as I sometimes get errors.

There isn't really anything different at all about userpatch other than the relic bug fix (which works against the runs) and the patrol (which doesn't really apply to any of the runs in a significant way)