Pretty sure it's not smuggling anything, doesn't make any sense in that area to use that kind of boat.
I don't know power boats well, what would be the value parted out? Pull the engines and chainsaw the rest?
Long run through the locks down the St Lawrence, think it would be pretty easy to find that way if it was stolen and went east.
Smells to me like an insurance
Next most likely would be stolen for the engines and whatever else would be of value. Then destroyed.
Joy ride is a possiblity, then where is it if it isn't sunk?
I know of many people who have had things "disappear" only to have them replaced with a brand new model. Never anything this big though! Usually motorcycles atvs, snowmobiles, jet skiis..............Strangest one was an entire maple syrup operation "disappeared" to be replaced with all new copper boilers and stuff.