I have heard these types of claims many times. The people making them seem more credible at first glance this time, but I am firmly in the camp of being deeply skeptical until I see concrete proof presented. That being said, I don’t completely discount the possibility. One answer to the Fermi paradox is that there isn’t one, and I can think of many reasons multiple governments would try to keep stuff like this secret…
The thing that bothers me is they supposedly have 12 or more craft that have crashed. Aliens have super sophisticated tech that is hardy enough to travel millions of light years through space but it crashes so easy on earth? What caused them to crash? I'd like to believe, and I think 1 or 2 might be reasonable but the claim is 12, which doesn't account for ships obtained by other nations as Grusch said I'd happening.…
Because nobody has figured out an autopilot that doesn't shit the bed once in a while? I'm betting on taking a nap in the backseat is just a universally bad idea when nobody is driving.