Except signing up for duty is progression, whether it's for your relics, tomestones, Animus books, story progression, etc. No one runs dungeons for no reason or no rewards attached. Everyone shares an equal responsibility from sign up to the final boss dropping dead. But going from what you just posted, you're telling me that I have no right to use the duty finder for progression because...there's something else that does the same thing in a new skin. Duty finder is a quick match of sorts and if people abused the sign up mechanics for it, then there's really little point to use it. Hence why Square is installing penalties for withdrawing too many times when the ready window pops up.

So yes, duty finder does revolve around progression, sweetie. We all sign up together to beat content for whatever our goals are.