Frankly, the only reason I care is the end-user drawbacks that Wayland seems to have. There are tons of bugs and issues. On top of that, I use Nvidia proprietary drivers which also causes more drawbacks and issues. It feels like at this point a third option needs to be made available. It’s been 15 years since Wayland was released and it still has a large amount of bugs and isn’t ready for most distros to adopt it.
I’ve not touched the Wayland or Xorg code, and I’ve not looked into why Wayland is so broken, but the major issue I see is that it’s taken them 15 years to still have a buggy display server. Display servers need to be the most stable you could possibly make them. They need to be made with desktop and fullscreen exclusive apps in mind. They need to be made modern and extendable while also ensuring those extensions aren’t able to crash the entire display server. They need to be robust and that’s just not what you are going to find with Wayland, or Xorg, or perhaps even Linux in general.