For me it seems like almost nothing is changing. I qualify via CC spending because the 24 hour free flight change is extremely valuable in my market. I easily save thousands of dollars a year using it, in part because one of the cities in my "area" always has much cheaper flights than my home airport does. The EMS for 100 points was nice but was always communicated as just for 2022 -- plus since I so rarely actually fly on the flight I originally booked, choosing seats at booking has never mattered much anyway!