I'm specifically talking about the use case of "can we use natural-language tools to parse oracle text and produce functioning game objects in Arena". For that use case, it's completely sensible to look at the actual rules text and not reminder text.

Looking back further, there was confusion during preview season when people were looking at "fake/leaked" mockups that had incorrect text on them, but this also isn't a problem for the issue of "WotC themselves writing systems that can parse card text".