Lol good catch; it's kind of a stealth statement on MS's part insofar as how they'll be handling the Zenimax stuff once the deal is finalized (sometime in early 2021). The deal still going through regs is the reason they can't say anything definitive, but the intent is clear.
Tho even I was thinking for a second at least ESO would still be cross-platform with PS, but for business reasons I can see why that would be a bad idea. Basically anyone saying MS needs PS to recoup the costs on the Zenimax purchase aren't considering 3 very important things. By putting those games on PS, they condition PS gamers who are more ardent in not wanting to dip into other ecosystems, so MS loses on that front by:
1: Giving up a 30% cut in profit to Sony
2: Losing potential sales of Series S and Series X consoles
3: Losing potential
subscribers to Gamepass.
Last point alone should be reason enough to understand why MS are very likely not going to bring any of the Zenimax games (that aren't Death Loop and Ghostwire Tokyo) to PlayStation. It just makes zero financial sense for the long-term in their business strategy, not unless Sony's willing to bring some of their 1P to Xbox platforms (more likely a meteor crashes in the ocean and unearths Atlantis than that
)