It bounced. If the structure was pressurised stable form, it was springy once unpressurised. Or maybe, it calved in-flight. Outgassing or explosive failure of something like a pressurised attitude jet, or a fuel cell with volts
How do they know it was a rocket and not a meteoroid? Did they image it before impact?
What do they mean by the rocket’s “motor”?
Given the amount of surveillance and satellite tracking blanketing the globe; how can 'someone' possibly send a rocket all the way to crash into the Moon, without anyone noticing, until after it got there?
Sounds like bollocks to me.