You don't by chance have a picture of that stator do you?
That's very odd... the several other failed stators I've seen here were all pretty uniformly (dark) colored all around....
If the guy at the shop has any feedback on the failure mechanism please post the results!
A am still looking for a failed stator on which to do some forensics engineering
If someone has a dead one kicking around that they don't need I'd happly pay USA postage and a six of your favorite beverage for it!