Dmorph and Tmorph applications

Found a Tmorph like application for 3.3.5 versions called Dmorph and was wondering if using it is allowed or is it bannable since they do technically inject itself into the" wow.exe". Only post i found with tmorph being allowed was from 2015 and was wondering if the stance is still the same or is it not allowed anymore?

I've been using it often for almost half a year for both transmog and race change, didn't have any issues server-wise