All Premium tier is it's bundling together PS+ and PS Now into one forced bundle.
The hook was tons of demos, more legacy games and starting in June you'd get some PS5 games like Returnal and whatever other recent games they have.
But the thing is, if Sony never did the 3-tier model, those games would had come to PS Now anyway (or at least most of them). No different than PS Now getting new games every month. So what you could had done is stay with PS+ and do PS Now if you feel like it (as an option). But now it's bundled.
The biggest games they promoted in June were all SP games (Returnal, DS, Ghost of Tsushima), so they didn't want people cherry picking PS Now only.
You guys basically got burned with a high priced bundle pack. It's like cable TV providers forcing you to pick a high value pack if you want certain features. But then you sign up and it turns out they change the channel selection where the channel you want isn't included at all. Or when I signed up for 4k channels years ago in one of their mid tier bundles (and quit), Rogers Cable literally comes with only 3 or 4 4k channels. And some of them don't even have content 24/7. TSN 4k is only active if they have a game to telecast in 4k that night. The rest of the day it's a blank screen with a TSN logo on it. So technically they werent lying. There is 4k service. But in reality it's hardly any service.