Give it more time and I think we will see more influence from it. Right now in Death Metal Wally took on Manhattan's powers and then the Batman That Laughs took Manhattan's powers too. So it had some effect. It was also meant to bring back things like the JSA and Legion, but delays kind of messed with it. Seems a lot has been put on hold because of the pandemic and DC focusing on Death Metal stuff right now. The big reason we are getting so much Metal stuff is because that is a series that sold even more than Doomsday Clock. It sold a ton.
But I think Three Jokers #1 sold double what Doomsday Clock #1 sold. Doomsday Clock #1 sold 157,714 and DC said that Three Jokers was over 300K. That is a massive number.