cowpunk52
Veteran
An All-I codec with a huge bitrate will automatically be very much better and more robust than the standard h.264 wrapper they are using now. There is no way that they are even on the same page. Some employee saying that it will be easier to edit does not discount that fact.
I understand what you're saying, and to a degree I think you're right. The way it was explained to me, by Canon reps, was like this: the difference is akin to AVCHD vs MJPEG. The All-I codec is still limited by the sensor properties, pixel interpolation and downscaling - that information is just taken through less a less efficient compression method and final recorded clips of the two codecs will probably not look terribly different without extreme pixel-peeping.
I would expect the All-I codec to be far more edit friendly and also may hold up to grading and effects a little better. But only testing will tell us for sure.