I'd argue that Prusa still has value over both Voron and Bambu Lab, though that value is dependent on the user. Voron still requires significant self-assembly, as you can't buy it as a prebuilt (far as I know), and doesn't have a company directly sponsoring it (that may be a plus for some). Bambu, on the other hand, is well built, but highly proprietary, and can absolutely rug pull without warning. This puts Prusa at a perfect position for makers/tinkers/hackers. The ability to continue to self improve if one wants, without needing to if one is too busy. I'm personally not a fan of Prusa Connect, as I like having all my systems run under software I've vetted, and right now that's still OctoPrint. But the thing is, I can still absolutely get OctoPrint running on the Prusa Connect hardware. It requires some tinkering, but that's in my control. Voron requires I build everything from scratch, and Bambu requires I use only their firmware/connection app. I've got so many things already linked with OctoPrint that moving systems simply wouldn't function. I'd have to completely reset all my automation.

As for Ratrig, that might be a healthy competition, though I've never looked into the quality of parts there. I know I've sat an Ender next to my Prusa and found the price vs quality to match surprisingly well, so Prusa's not the only game, but for something I can control, while still having a company to lean on when I want to, Prusa's got a good thing going.