Why give up access bandwidth on a satellite meant for last resort kinds of communications? The satellite isn't self sufficient so someone in the military has to

Why give up access bandwidth on a satellite meant for last resort kinds of communications? The satellite isn't self sufficient so someone in the military has to adjust it in space. There might be older pieces of equipment out there still using the satellite so having a bunch of random people taking up bandwidth and not following the channel allocation. It's better to just enforce the rules that already exist to make sure that the resources are always available.