Ooh, more data. My Garmin 235 doesn't give me all that information. Probably a good thing.
Agree form is important, but form is related to strength. Consequently, form breaks down as people tire. When I was young, I always felt a lot of runners would benefit from doing much more short fast work and less long slow slots. Largely because this would improve strength and form without being so limited my they broke down.
Also, although I'm a mid to forefoot striker, I don't think there's any evidence that other gaits are inherently more injury prone. It's more down to building the protective strength in the musculature and letting the bones adapt also. Both of these happen more slowly than initial CV improvement, hence the large number of subjects who pick up a njuries in the 6 to 18 week timeframe.
Knee issue are often pre-existing from other sport I suspect;)