I have just gotten back from my Polar Bear Photo Tour in the Canadian sub Arctic. Trying to catch up on some Canon photo news when I was away. It was quite a productive trip. The weather was 'milder' than past years and I will be processing the photos when I have a chance to rest up and look at them.
It seems the debate of prime vs zoom lens is still alive or perhaps just an 'excuse' for DigitalRev to make another 'entertaining' video for the YouTube channel. My readers know I have been a wildlife photographer using Canon equipment for 25 years. There are wildlife photo trips I have taken with no prime lens in my equipment bag other than the Super Telephoto lens. Usually, I prefer to travel light and some small planes have severe weight limitations on carry-on luggage.
For me, the 'debate' is yesterday's news. Today, the high end zoom lens like the EF 11-24mm f/4L, EF 100-400mm f/4.5-5.6L IS II and EF 200-400mm f/4L IS 1.4x Extender have image quality practically equal to the best prime lens in its equivalent focal length. Once the versatility of the zoom range is taken into account, any 'perceived advantage' with prime lens is a difference without a distinction.