Linguistically speaking UAVs seem closer to manned aircraft, so the fact that TV guided missiles and 'kamikaze' drones offer similar capabilities is more of a 'convergent evolution' thing.

One of the things that I think make them different is that UAVs are expected to be able to wait in the area of operations after being launched (how they do it? It differs between models).

But I agree that using the word Kamikaze specifically is a bit weird.