This is something I've thought of before, and I've always wondered how one would go about actually measuring this. I think Peter Thiel would normally wrap up the UX or the 'it just works' effect as part of some nebulous brand strategy. I bet there is a way to concretely measure this, whether it's product market fit or the ability to keep innovating.

Measuring lead indicators of good UX is a little tricky.

Ideally, you would look at frequency of repeat usage against competitors but getting their data seems to be unlikely. Net promoter might be another useful metric but I'm not sure there is a silver bullet for measuring good UX.