I thought the video was well put together and the quality was good too. No awkward pauses or useless rants.
To make it more interesting, think about doing some sort of tests or competition with them. Put them through use and abuse for a few months, then discuss how they are holding up. Cut stuff you shouldn't cut, use them to bang on beater screwdrivers, drop them from the top of a 12 foot ladder. To me, the toughness of a tool is its best quality. Is it built to last and to take unintentional abuse?
I do take issue with you saying the Knipex pliers are better than the Kleins because of the smooth opening when brand new. I think the Kleins are tighter at first because of the tightness in the rivet, not because there are filings and stuff in it. Of course, I could be wrong. But reading here, some people see the tightness as a sign of a well made tool, and of course that tightness goes away the more you use them. Klein does their rivets one way and Knipex another, so it's almost like comparing apples to oranges. One style may be better, but I don't see the differences as a way to say which brand is manufactured better.