I mean, sure, this should be considered effectively trivial, but it's just click-bait.
Look, I have too many degrees in my failed attempt to become a philosophy academic to just skip leaving a comment here. Apologies for the wall of text:
The entire point of most of "Modern Philosophy" is pushing back on the ideas presented in "Ancient Philosophy," most of which come from Plato (and then Aristotle). Beyond that "Analytic Philosophy," in a sense, take direct aim at the way Plato sees the world altogether, and effectively asserts that he has everything backwards. Plato looks at the world and tries to derive the concepts he finds, where the Analytic tradition basically suggest that concepts, themselves, are us just pointing at things and unifying the things we see with shared words.
You can really see push back with the Existentialist, who basically build their entire theory an anti-Platonic sentiments. The essences that Plato relies on and effectively rejected completely.
I really thing the point of why Plato is so important is that his ideas are, what I consider at least, the default ideas humans have about the world. They represent the instinctual conceptions of philosophy that need to be effectively unlearned by exploring ideas that are counterfactual to them, or demonstrate how they create contradiction. This is important! The reason why we have ZF set theory is because Pythagoras got some things right and got some things wrong and we built from there.
Plato being wrong about things shouldn't be surprising, it shouldn't be controversial, and it shouldn't mean we stop studying it.