Because Chase is entrenched with Marriott and it will outmaneuver Amex. The entrails are telling this haruspex that Chase prevails, not Amex.
This. UA club lounge got eliminated from AMEX platimun PP, MR to BA transfer ratio decreased...Chase is very unlikely to have as much tolerance as Citi.
Personally not an AMEX hotel credit card fan. Increased Annual fees by $30 and made a huge deal about a benefit (No FTF) almost every hotel credit card already has? Sorry I don't buy it. Chase is way better in this regard.