Aren’t the retcon powers essentially Breath, Light, Time, and Space combined? Since the beta kids got sucked into the juju and that’s where John got the power from?

You could say that. But you could also say they’re just Breath, an hypercharge of John’s already inherent powers. It’s hard to pin-point exactly what makes it up entirely. In the end though, the result is the same- Plot Shenanigans.