Yes.
Statistically, favors aren't too hard to come by. However, Unities had thoroughly awful odds (see the little note at the bottom of the recent changelog).
If you're about to blast through some chests, you may want to wait a week or so until there's some community confirmation that drop tables have been realigned. Don't worry, we'll look out for you!
In maybe 150 chests I have had 1 favour of Iomedae so definitely not aiming to get them that way. As a contrast about 8 Armour of Legions that I really don't use.