Copper citadel map inaccessible from boss arena?

This is a pretty niche complaint but can we please add a portal back to the map from the copper citadel boss, I skipped over the other mechanics to do the boss first and make sure I got the fragments, not realizing that there would be no way to go back to the rest of the map and do them afterwards.

Yeah, only way right now is to not make a town portal in the boss room. Just quit the game and rejoin through the map device in order to finish the map. Hopefully they add an exit soon :)

Wish I saw this suggestion sooner. I skipped breach and rituals to ensure I got the boss drops. Now I am screwed and lost out. Adding a portal back to the map (or a checkpoint) is an easy fix. GGG, please consider this addition!

Yeah still no way back. Makes no sense.