It reads just like so many claims like we have heard in the past, but this time people think the guy is more reliable.
It is pretty funny that the one of the people often quoted who backs up Grusch's claims is Jonathan Grey. (https://www.imdb.com/title/tt2241801/)
I'd love to think that alien contact is possible, but as I attempt to learn more and more about physics, travel approaching the speed of light, the mechanics that transformed us from a basic life form to a life form with a consciousness, it just seem incredibly unlikely sadly.