Yeah, that sort of thing is annoying, but it could be improved down to 4 if they actually cared much.

The point here is that going to geostationary is at least a quarter second round-trip, and blows the 25ms estimate out of the water. You can put servers in orbit if you really want to, but you can't have a satellite that's both fast to access and also in range for more than a few minutes at a time.