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controlling the mainland which might be termed a de facto acceptance of the situation but formally the claims have not been revoked.
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controlling the mainland which might be termed a de facto acceptance of the situation but formally the claims have not been revoked.