Apple doesn't want to include Flash because Apple can't update Flash. Apple can't fix bugs in Flash, add new features to Flash, and so on. Apple has to rely on

Apple doesn't want to include Flash because Apple can't update Flash. Apple can't fix bugs in Flash, add new features to Flash, and so on. Apple has to rely on Adobe to fix these problems, and historically, on the Mac platform, Adobe has done a piss-poor job of it. I'm not aware of any situation in which Apple has prevented Adobe from going about their day-to-day business with e.g. Photoshop or Illustrator, or has hindered their ability to fix bugs or add features to those products.