I don't see any way to manage devices connected to the hotspot, not even basic ones. There's just a disclosure of the number of devices connected, and that's it. No way to identify what those devices are, how long their DHCP lease is, connection time, IP address, nothing. Am I missing something?
If not, this seems to be a significant security hole in the system design insofar as a previously connected device should not be allowed to unilaterally reconnect to the hotspot and not able to be managed by the user. A user should be able to have some basic DHCP management over hotspot devices, including forceful disconnection of an undesired device. The only workaround I see is to change the password to prevent automatic reconnection, which as a practical matter is a headache if one has a number of devices they regularly trust to (re)connect, but adding a one-off device temporarily, which they don't want to continually reconnect, then requires all the other trusted devices to have their passwords updated.