[Timon3]

There are a couple of explanations for crashed vehicles, I'll ignore any videos here:

- could be Von Neumann-style probes that don't care about collisions

- could be willingly "crashed" to speed development up

- could have been attacked by other species to prevent intervention

- could be inexperienced (e.g. young) pilots

I'd 100% assume that any kind of FTL vehicle also has some kind of cloaking functionality, so I wouldn't trust any photos or videos without a lot of further evidence. Just wanted to mention possible reasons - it's not 0% possible, more like 0.000[some more zeros]001%.