> Do you call all products and business that fail or go out of business “stealing”?

I have plenty of products from companies that go out of business. Some of them even have servers that they depend on. At least one of the companies did the right thing and allowed their physical hardware product to continue to be used by people running their own servers.

It's not rocket science. It's should be the right and moral thing to do. Are they legally required to do it? No. Should they be? Probably yes.