Yeah, Sony lost me there too. I used to play CoD quite alot, and alot of my friends were what I call CoD casuals. These are people that pretty much only play CoD and maybe some sports games and probably Fortnite now too. I once asked one of them if he planned to play Skyrim and he didn't know what it was. To call the majority of the CoD fanbase, which are the so-called CoD casuals, knowledgeable about the gaming market and gaming hardware, is just a total joke.
Then Sony cites Digital Foundry and VG Tech and says that their framerate and graphics analyses could sway people to play on Xbox instead of PS5 if CoD runs better on Xbox than PS5. Even if that were true, and most of the people who watch these tech breakdown videos allow those tests to sway which console they play which game on, the latest Digital Foundry CoD test has 151k views while the latest VG Tech CoD test has just 9k. 160k people swayed to play CoD on Xbox instead of Playstation by a tech breakdown video is a drop in a bucket when each CoD games sells over 10m copies lifetime on Playstation.
And of course all of that assumes that Xbox won't develop CoD to have parity, which they already promised regulators they would and said they would hire a 3rd party watchdog to ensure they live up to their promise for the full 10 years they agreed to.