> The purpose comes from why the creator created it.
Some higher being might impulsively created the universe out of boredom, in which case there would be no ultimate purpose at all. But maybe they created it intentionally, with a purpose, which is the ultimate purpose of universe and everything inside it.
So no, it's not what you condescendingly said "wordplay at best." There can be a relationship between the purpose of a creation and the reason why the creator created it. In fact, for many everyday things, the purpose of their existence is exactly the reason why the inventors created them.
(I'm not arguing that there exists a creator of the universe. I'm just showing how irrelevant, to put it mildly, your seemingly strong argument is to the post you replied to.)