admin interface doesn't support https?

Device is a CM1000v2 cable modem; hardware 2.02 firmware V10.01.07 and seems to be current.

I'm surprised that the admin interface is not TLS enabled, and that there is nothing listening on 443?  Is that intentional, or is have I made a mistake somewhere?  I suppose if the box becomes compromised I can always reset it, but it seems like this would be a basic IoT protection?

--woody