[2019] Dwarf devs: a little QoL for us early hat adopters?

I didn't realize that limited time hats have to be purchased for every class, one at a time, till now.

How about if you have unlocked a limited time hat, that hat unlocks for all classes automatically?

Just saying, I'd love my 1 year anniversary party hat on my driller, or any of them on a possible 5th class in the future.

Thanks!