Unless it's a mass issue across a whole beam, it usually requires some investigation to figure out why an individual terminal state is degraded. And sometimes (more than I'm comfortable with) during the course of your investigation you make the terminal state even worse (because you tweaked some config parameter the wrong way). You can always tell when you done messed up because suddenly you get disconnected from your ssh session or you can no longer reach the embedded web server from your browser. In those cases sometimes the only way to recover is to precisely undo what you did, and an auto-ping-reset will not fix it (unless the system keeps track of most recent config changes or something). Your options are: use udp/tcp proxy or snmp to attempt to undo the config parameter you foobared or send out a technician and fix it on site...
I'm not saying our system is perfect. Surely we could improve fault detection and recovery. I'm just saying one-way communication protocols are real nice to have sometimes because of these scenarios.
( yes, I know that's a terrestrial, microwave relay dish and not a satellite antenna, but it could happen.)