They’re not. The ship has 1 bad thruster, but need like a dozen to fail to make re-entry impossible. They could leave right now and everything would be just fine.
The thing is the module that’s malfunctioning doesn’t survive re-entry, so the only time to investigate the problem is before they head back.
My issue with Verizon 5g is that it is worse than their old Edge service.
5g on my signal bar essentially means “doesn’t work.” It wasn’t an issue when I could turn off the 5g radio, but Samsung pushed an update that removed that option.