I think Prem of Insight should stay as the only premonition.
It’s the funnest one to use, and it feels like they acknowledged that by giving PoM an extra charge, but it’s definitely not going to feel as good as the current tier set’s version of premonition. Who cares about an extra charge when your goal is going to be blast it off CD anyway?
What’s fun right now is you don’t have to engage with prem much. You just use it like it’s free insights, and pay attention when you’ve got a piety version because that can work into some damage events. But in raid, you’re barely even doing the latter.
Splitting piety off into its own talent node is a good idea, but I do just think losing insight and getting a second charge of PoM/Penance is just straight up going to be less fun. We’ll see when more talents come in, though.