AMD discontinuing Mopar parts

To be honest, they hung on about 8 years longer than I figured that they would. That said, you can blame:
The selection. How many '66 A-body ashtrays were needed in the marketplace?
The Chinese. Tariffs, and now disease, are hurting AMD immensely.
The market. Already discussed elsewhere.
Fiat royalties. Probably ain't helping.

I doubt that this stuff will be gone forever. It's not like the dies shriveled up and blew away. And I doubt they sold enough to wear out the dies. If the market will support it, they can bring it back unless they crushed the dies. And the Chinese are very good about taking things like leftover dies and selling through other venues. I can see "AMB" reproduction panels coming out soon enough.