At least on my mobile, I get ~100 ms ping to most things. Admittedly I don't use it very often so it's hard to have a real world feel for how frequent things like dropouts are, but that's mostly because data costs a lot. That kind of also ties into developers doing a bad job though (e.g. sending me 10 MB of who knows what when the task (like paying for parking) fundamentally should be doable with a few kB, most of which are the TLS handshake). If they didn't do that, their thing would be instant with 3g speeds. Most CRUD generally just doesn't need a lot of data to actually accomplish the desired task.

Satellite Internet will be slow, but should still be well under a second? I'd still expect that even extreme cases, you wouldn't expect a spinner to complete a single revolution. So it still seems unnecessary.

Anyway, I'm generally on a reliable 300 Mbit/s connection where my pings are more like 20-70 ms, so I suppose you could alter my statement to "if I see a spinner, I interpret it as incompetence".