Whilst Flash will work just fine in many instances it is also not perfect. The question, in such a situation, which you must ask yourself is - will people look at my website (and video) using an iPad. If this is likely, and it possibly is likely, then Flash will not playback for them. These days, I am very careful where I use Flash and I try not to use it in critical locations where non-functioning playback will make the page look bad.