I once had a "friend" pepper spray me. It was a most unpleasant experience but I did learn one VERY important fact. I was STILL able to beat the crap out of him in spite of being sprayed. So even though I couldn't see, I was having trouble breathing, I was not incapacitated.
That's why pepper-spray devices are not something I'd rely on in a life-of-death situation.
Thanks for posting the video. Even though you were sprayed it was clear that you were still able to draw your handgun and would probably have been able to hit your attacker with the first shot in spite of the pepper spray.
BTW - that "friend" was basically an idiot and I didn't hang around with him again after that.