I’m not sure I understand what the purpose is. I think it makes the Force feel a little technological when it should be rather natural.

If anything, the Palpatine radio call could have a mix of radio interference, and a mix of the Force connection sound when Kylo connects to Leia, rather than the Force skype sound. I think the sounds are slightly different. Since Ben and Rey’s bond is unique, I think the Emperor connecting to Kylo could sound more like the more general connection sound. I think combining those two sounds there would be enough to make it ambiguous. I think adding that sound to the Force skype sessions just feels a little unnatural. My two cents though!

I personally don’t have a problem with the slow-mo shot, but I can see why people might not like it.