This thread is really embarrassing. Guys need to chill. This is a good thing.
For me it's not a question of if it's a good thing it's a question of is it redundant? I don't know if the OP is implying this is for GamPass when in reality it may not be/may not require GamePass.
If this is separate from GamePass then it has a purpose. If it's a part of GamePass then it's kind of redundant for anything outside of 3P games that don't come to GamePass Day 1.
But the wording in OP makes it sound like it's intended for GamePass subscribers and the reason I said it's a bit redundant is because you already get more games for Day 1 on GamePass vs. PS+. Point of demos is to let the user spend some time to decide if a game is worth their buy and time. With MS's approach you don't need demos for their 1P games, or quite a lot of indies and even some AA games, since those are the ones they guarantee Day 1 in GamePass anyway.
If you're curious about those games, just wait until Day 1, download (or stream, if it's available), try and decide to either keep it or uninstall. That's all there is to it.