I also use many of the white items for roleplay and was hoping that some, mostly the holiday gear would just become transmogs you could use all year round. I was so pissed to see the holiday lock on many of the items I use daily all year round.
I always hated the holiday restrictions as they make no sense and that WoW is literally the only game that does this.
I also hate the armor type restrictions for Transmog in WoW as well. If I wanted to be a warrior in cloth I should be able to, as with a priest wearing Plate Transmog. All transmogs should be able to be used on all armor types as they are just cosmetic after all. Not to mention there are already some items that are cosmetic only that we can use for all armor types, so we know this can already be done.
Imagine the thousand’s of combinations we could do with no armor class restrictions for Transmogs, almost sounds infinite to me.
This would be a huge win for WoW if they would remove all restrictions from the transmog system.