If you've already beat t5 and everyone's i90 I can 100% understand quitting Coil before 2.2. It's just a matter of perspective - why continue to do content that you've already entirely done and capped on armor ilvl? Do you really NEED that +5 Crit Rate difference? While I love all my friends in FF14, I'm not coming back to do anything 'til 2.2; Everyone needs a break, you can't bang your head against content forever that will immediately be irrelevant to you in the next patch. Even if you don't have an Allagan Weapon, we're looking at new weapons that will be way better in way easier content (if Levi EX drops weapons they'll definitely be either on-par or above with Allagan).

Just chill out for a week, Coil will still be there in 2.2. Infact, more of it!