I only looked at the first picture since I'm doing this on a remote desktop and it's REAL slow loading images.
I have never seen anything like that before. Stainless motors don't just melt down like that. You must have something wierd going on there. Looks like some kind of electrolysis, but I've never seen it on Stainless.
If you want to complain, you will have to get in contact with ITT, they are the conglomerate that owns Red Jacket these days. Rather than have you Bad Mouth their product on a Forum they would probably be glad to send you another.
By the way, most sumbersible motors are water cooled and water lubricated. A very good friend of mine used to be an Engineer at Red Jacket before they were bought out and would know if your motor was one of them.
Franklin not too many years ago bought Red Jackets motor and started making motors for them. Look at the writing on the motor and see if it's not in fact a Franklin motor.