[Freon]

He wasn't being rude, nor would I consider it fair to second guess their decision to destroy the jig when it's essentially worthless. Expecting someone to keep selling a product at a loss or opportunity cost isn't reasonable. If you are that upset about it and think it was a bad decision, by all means start making your own harness bars. If you're in the right you'll make tons of money.

As others alluded to, it seems very plausible the jig was repurposed to make other parts. Rather than make a brand new jig for another part they think they can sell, they could recycle the jig from a product that isn't selling. They could pop off some braces and put new ones in to jig up for harnesses for another car, or another similar product like a subframe brace, etc. Jigs typically have a very heavy metal base to keep things from shifting, and there'd be little reason to actually throw it away (could be hundreds of dollars in raw metal).