Not really: the implication there is that people who need additional accessibility work are not users. The UX of a system is the sum totality of the experience of all users of the system, regardless of their needs.
If UX is the sum totality of the experience of all users of the system, it can be significantly better for most users but worse for a small number. I’ve never used the app so I have no idea, I’m just saying UX is more than accessibility, so you can have a great UX for most people while being useless for others.