Dealing with it myself right now. A cop blew a red light in November and t-boned me. I'm told it's grade 2 whiplash (whatever that means). I've been getting therapy ever since and even as I write this I'm basically in agony but there are good days and bad days and this is a bad day. I don't think this would prevent me from playing hockey though. It's not structural, it's a soft tissue problem. It doesn't really limit me in any way. Dunno if his is as bad or worse than mine but based on my experience, I doubt a little time off is going to make that much of a difference.
Why does your video look like the Zapruder film?