As I have again been asked this privately and it again pertains to convention, I do not consider "rolecrushes" destructive. I consider a rolecrush to have two effects - it's primary effect I class as preventative, because it prevents action, and it's secondary effect I class as creative, because it manipulates passives (via disabling them).
To save me having to write out the same PM five times, I'm happy to answer questions of this nature publically going forward.