May be true as far as marketing spend but they're still going full force with this in every other way possible you can imagine, having Tom Brady in front of the Galaxy's Edge construction walls all over social media, announcing the Galaxy's Edge cookbook, the comics/novel, etc. And that's just THIS WEEK.
Universal is not doing anywhere near the same thing. If you haven't been to the park or caught that one post, you simply would not know there's a new Harry Potter attraction coming. You couldn't. It's not even on their website under "Coming Soon."