I've never seen The Deathbed Vigil video/DVD but a lot of Commodore's problems could have resulted from intense competition in an intolerant market.
They kept the Amiga alive until production of a games console variety (the CD32). This was 1985 - 1994 = 9yrs?
Their problems were caused by the upper management who didn't understand that you cannot stand still in the tech market. They had better technology but never released it. Instead they put all their money into cheapo PCs, many companies with unique products did this - and promptly died.
Apple were the one company which stayed different - and survived as a result.