It's been known about and at car shows for several years now, it's not a recent find.
There was even an article about the car and then current owner in Mopar Collectors Guide several years ago also.

Yes it's a cool history, but not a recent new find by any means.

If I understand it correctly, the current owner has had it since 2005.
https://www.boreal.org/2018/06/11/174945/driven-to-keep-edmund-fitzgerald-crewmans-memory-afloat