I’ve already done it (although I’m sure you could do it even better)
https://www.youtube.com/watch?v=ikD6D9-OU1g
While I agree it’s still somewhat messy, to me at least it is the most sound answer. Sure, you can punch a hole in it by saying that since Snoke still is aware of their connection, why is Palpatine surprised by it. But ultimately, the way Snoke speaks without that one line could suggest that he either assumed they would somehow get in contact, or he did know about their connection. Either way is good enough for me.