Joliet is a PSA yes voter and troll. So, are they gonna magically move 20 air stairs over there?
Go away.
Wouldn't be the first time. You'll recall that 80% of the CHQ USX 145 fleet was plug door equipped and served the "World" for years, maybe even Mesa's too.
Also, as the slot divestiture becomes more of a reality we've seen more mainline overnighters on the gates. Last few nights we've been on the 170 dominated side.