If the problem with Flash performance on Mac OS was solely due to Apple being uncooperative, why does it work just as poorly on Linux? I really hope this fight

If the problem with Flash performance on Mac OS was solely due to Apple being uncooperative, why does it work just as poorly on Linux? I really hope this fight seriously diminishes the popularity of both Flash and the iPhone platform. Apple and Adobe are both working against the interests of users in trying to insure the continued relevance of their platforms.