Jay's involvement isn't overstated, at all.
He's been trying to do this with mad different people for close to 10 years, in various locations. He's not just some average rapper. He's literally more connected than probably any other artist in music. And already manages something like a couple of billion dollars in contracts through Roc Nation and another like 500 million, he said, in media deals.
These are the types of move he's been making for a minute. He's more than just a "celebrity" or rapper. That should be more than obvious by now. Bro's business acumen is on full display in his numbers and successes. Dudes can't minimize that type of motion. He's working on an entirely different level, these days.