That would be a W ending
but they can’t do that because there’s 2 Avengers movies in the same year, implying that just like with Thanos in Infinity War, Kang is going to win in the Kang Dynasty (hence the title). So if they end that way in Secret Wars (a title which implies characters beyond Kang might be coming), people are just going to argue that they should’ve done that in Kang Dynasty.
That’s the danger of making characters too OP, you run the risk of having to make characters not think of simple ways to win just because you need tension to happen. Nothing that happened in Endgame made Infinity War look stupid because our heroes didn’t have access to what they did in Endgame, which enabled them to win. But if they did this with Kang Dynasty and Secret Wars, nobody would take them seriously.
And they’ve got a high bar to set after Infinity War and Endgame, especially since they’ve dropped Avengers movies in every phase in the Infinity Saga but opted to skip the first two phases in the Multiverse Saga. They’re keeping us waiting for Avengers movies, so they’ve got to make these epic, probably even more epic than Infinity War and Endgame, which is going to be REALLY hard (especially since in the Infinity Saga they were trying to appeal to fans and Phase 4 has had some moments that were meant to make fans livid, and so they may have lost a lot of their audience [maybe they wanted Thanos’ snap to apply to their fanbase as well?]).
The one way they can undo 2022 (because they didn’t put much good stuff out last year and lost a lot of fans) is for Antman and the Wasp: Quantumania to be insanely good (since it will set off the Kang Dynasty). If that is really good [and it looks like it will be], and they decide to go back to making fans happy, they could get the franchise back on track.
Spider-Man No Way Home was insanely good, like on the level of Endgame. They can still make good stuff. And it benefits them to; when they make fans happy they make the mullah. Plus more Avatars are coming; do they want to be able to compete with the Avatar movies with the next two Avenger movies? (now idrc about Avatar much and prefer the MCU much more)