I think you're overreacting a bit. Because there is worse. The one I pointed out? Has a 3 month cooldown.

Progen, yea it sucks, but it's an inconvenience at best. I'll do it next time I unden and redress mine... Which will probably be never.

However, putting your 3 month restore on cooldown unexalting a non progen could result in you losing a normal dragon in the case of a mistaken exalt later.

They're both stupid, but you're blowing up at the better of the two. Progens are stored intact and you get them back the same. I've had someone tell me their profile was intact.

Neither should be an achievement.