This seems consistent with what Microsoft has said all along, no? Existing commitments, like Deathloop for Sony, would be honored. MMO games with existing presence on other platform will continue that broad support, including on PS, like Elder Scrolls Online, Fallout 76, Minecraft, and, if acquired, Call of Duty.
But by default, all single player releases will be Xbox exclusives. The contract referenced is with Disney (the IP provider) not with Sony. While interesting to see this confirmed, I would think this would have been the default expectation. The FTC should certainly not be waving this as an "Aha, we told you!" flag. Microsoft already told everyone this two years ago.