To be honest,.. I'm going to be a bit mad if this is true.Why? For those clamoring for gross gen to be over, this is good news. Bse PS5s power will he harnessed in a way to extract everything out of it. It won't waste it on higher resolutions or higher framtates.
The devs would develop games based on the Pros power and downscale res/framerate on base PS5. It would be pushed to its limits.