You give Apple too much credit (yes, credit) for effectively killing Flash. Google had more to do with it, as they have been pushing HTML 5 for probably longer than Apple and have
much bigger sway in the online world than Apple - including mobile.
I bet Apple would like their own proprietary codecs and closed standards to fully control the user experience and continue collecting the 30% Apple Tax, but fortunately for us consumers
content providers have started fighting back, and HTML 5 is fast becoming a standard instead.