I don’t see what in that article says what you’re saying.
The amendments changed the law such that Taiwan could start having elections without controlling the mainland which might be termed a de facto acceptance of the situation but formally the claims have not been revoked.
ROC doesn’t claim to legitimately rule China anymore. That was just KMT’s delusion, and they’re no longer in power.
Isn’t it in their constitution?
Not since https://en.wikipedia.org/wiki/Additional_Articles_of_the_Constitution_of_the_Republic_of_China
I don’t see what in that article says what you’re saying.
The amendments changed the law such that Taiwan could start having elections without controlling the mainland which might be termed a de facto acceptance of the situation but formally the claims have not been revoked.