the chick scientist kaminoan clearly has some extra plans going on, she deliberately hid stuff from Tarkin and "likes" the clones / Bad Batch / Omega, whereas the Prime Minister Kaminoan seems to have his own hidden plans. They mentioned in the previous episode that the Jango Fett DNA was "going bad" but they had a contigency plan, the implication being that Omega is the contingency that will enable better new clones. Fennec Shand went out of her way to keep Omega alive so the bounty is for her alive. While they don't explicitly say the only people who would really know Omega is "special" are the Kaminoans.
Obviously it never pays out since the clones are pretty much gone at some point, although I'm still hazy on when exactly the Empire stops using clones - the original movie trilogy doesn't really say, but Rebels I believe shows in its final season that most stormtroopers are just regular soldiers, NOT clones, and that takes place a good 5 years or so before A New Hope. Still a good 15 years in the future from A Bad Batch. By the time of TFA the First Order is using brain washing techniques to take children and turn them into storm troopers so clones are still out.
One interesting out would be Grand Admiral Thrawn using clones, he is probably going to be the Thanos type of villain that intersects multiple shows - Mandalorian, Ahsoka, Andor, Book of Boba Fett, etc.