Overcrowding is going to be a double whammy for AS between the recovery of business travel and OW alignment w. AA in particular. If the pricing for AS does not match AA and lounges fill up, this creates real issues for OW elites + F/J passengers from non-US carriers where AS is paid for entry and has a contractual obligation to meet.
There are some very real advantages to OW for AS flyers, but they come with cost alignment too.