I disagree on both counts. I've gotten some very nice upgrades as Diamond that I'm sure would not have been contemplated as Gold (and I'll get to test that theory out later in the year when I drop status). Similarly I have gotten some great Diamond forces, even getting a Point Stretcher when there were no award rooms available online.

That doesn't mean I'm happy about devaluation of benefits, which I think is real. I'm just not convinced your assertion there is little difference is right.