Deffo wasn't the Captain's fault then
Two minor points if I may:
1. That's not the M4. And . .
2. The thing that came unstuck was not a Spaceship!
Bloody hell, Marley could present the case for the defence, "he swerved to avoid falling space debris me lud"
Would not work well as a defence since that is clearly NOT the M4.
However,were he to try the
'we swerved to avoid a pod of bottlenose dolphins' defence,
then he might be in with a chance (of 20 years to life as they say across the pond).