I don’t think we should assume that AMEX and Chase won’t follow suit. This is typically how it happens. When contract renewal comes up each issuer looks at the competitive environment and makes a decision on whether to continue the current contract or make adjustments (usually cuts).

We started with losing restaurant benefits, then some cards lost spa experiences, then number of guests. I wouldn’t be surprised if Amex or Chase were to make the same change when their contracts are up.