No, the thread isn't offensive, yet. I don't watch many vids on knives because the majority seem to be low resolution, poorly lighted, and the typical format is boring, boring, boring.
Pick any and turn off the sound. If the grey fog of being uninterested starts to lower your eyelids in about 45 seconds, there it is - it should have been a post with pics, not a waste of 5 minutes of my life. Most videos miss the entire point of what the format is - a visual presentation. Not voiceover.
Nobody goes to a Stallone movie to hear him sit quietly and discuss his views on gun control, right? No, it's about fights, explosions, fast cars, faster women, etc etc. plus shooting. You can turn the sound off and keep up with the movie, duh. IT'S VISUAL.
The OP has a valid complaint - owning a camera and a new knife doesn't qualify anyone to be a reviewer. It certainly would help to at least follow the cues we see in commercial advertising - the window of opportunity is in the first few seconds, lose it and you lose the audience. Make your point, keep it visually dynamic, and cut the scripting - focus on the knife, get in tight and reveal the interior construction, the parts laid out, fill the screen with the screw threads. Visual. Anybody can grab the youtube slider and see the relevant frames pop up and scroll by, if all I see is a 5 minutes of tablecloth, I'm outta there. You should be, too.
My son is a video production graduate working at a local TV station, we get into some interesting conversations. Ask a professional (!) and you will hear videos online are the new vast wasteland of mediocrity. And people buy smartphones because they can watch them anywhere?
Goes to a rule of life, Observe the Masses, do the Opposite.