Just some thoughts guys.
I actually make knife related videos on youtube. I do not have a huge channel, a bit less than 500 subscribers right now.
I think of the reason I made the channel. Number one, for fun and enjoyment. But I love to buy folding knives, and I want to see them from every angle before purchase. Some retailers are terrible with photos, and information on some models can be scarce. So I would search youtube for videos of the knife in hand, and maybe some commentary about how it looks/feels. My videos are there to help someone decide a yes, or no. I just want to share basic measurements, and macro shots that you may not see anywhere else.
I am not about to go skin a deer or go trekking in the forest for two weeks to get "real" use out of a knife. Think of it this way as well, from a youtube content creator's perspective: I want views. I am not going to make a video about the Spyderco Tenacious, why? because there are already perhaps hundreds of in depth videos in existence about that knife. Too saturated, too few views to be worth the effort. More obscure knives from upcoming brands will bring views however, and interest, and subscribers.
But lets say Spyderco comes out with its new Supermatic5000 Flipper. When that knife first releases, If you can get it on film in a quick matter, your video will be among the first that potential buyers will see when they do their research. You want to be able to ride this initial wave of interest and get more and more views before every mainstream knife channel reviews it as well. Early bird gets the worm. So as a result, I am not going to film some massive project showing you how the knife cuts and performs. What you will get however, are the specs and whether they deviate from whats advertised, and well lit, close up views of the knife and its clip, mechanism, action, and anything else relevant to someone potentially buying the product.
While I don't do true unrehearsed "unboxing" videos, I certainly do tabletop "reviews" that are meant to inform. Simply put, if I take the time to use each and every knife and also manage to film myself doing so for each of my videos, I will "miss the boat" in terms of views and relevancy, and the time it takes to edit and render such videos would make this result even less desirable and fun, which is why I do this anyways.