No I don't think you are being unfair. Its mainly entertainment.
Don't have any problem with unboxing, and some do it a little more professional than others. Just tells you what to expect from the box. Sometimes compares to the usuals.
I don't mind people's enthusiasm in taste of what they like looks and mechanism wise.
I don't mind the "I'm going to beat on this knife to an inch of its life; take what you will from it".
What I don't like is when the reviewer raves how great the knife will be to use when they haven't used it, or used it enough to be able to say. It takes a good few hours of use to have any idea, or a few minutes if rubbish. Some reviewers obviously have never done a days manual work in their life. (For collectors, for collecting sake this doesn't matter).
prepared mind 101, hasn't got a clue because he never gets out of his garden and never done a full days work in any manual trade. The respectable side of mall ninja. You can't test a knife's handle wearing gloves. Beating on a log just proves the knife can take it and the edge won't roll.
nutnfancy, gets out a bit more and has a bit more fun. Think he is finding some of the toys aren't quite what he cracked them up to be. Playing in the woods and enjoying himself but its not real. Real is far less exciting.
gideonstactical, is doing his best but not terribly into knives and following the crowd a bit. Truth is almost any knife can be made to work adequately, and he is coordinated enough to get most to work. Being "into knives" is something different. Think he does the knife reviews as its goes with the rest he is doing. Other stuff is more interesting to him. Well thats my impression.
Great Lake Prepper, is the closest reviewer to what I think. He has a satirical angle and proves the point he is making even if that means doing something he wouldn't do for real. Done to prove the point. Seems to me he has done the practical and his reviews are based on what works rather than imagination. Certainly questions some of the rot spouted elsewhere. doesn't take fools lightly.
Tactical: is growing up a bit now. Can't deny the enthusiasm.
Mayor Fuglycool: doesn't pretend to be anything other than what he is; enjoying himself for his and our entertainment.
Dutch Bushcraft Knives, not jut having fun as they give the blades in review a good beasting.
Junglecrafty, he is there so tells what works for him.
There are many others and as said it varies tremendously. I like it if the reviewer put some effort in and actually gets out and does some work. Beating for beating sake doesn't show much. More "in actual use" use would be more helpful. Or just show their enthusiasm. Have to say I search out "how people do stuff and craftsmanship" rather than video catalogue reviews now.
Big subject.
Lastly, its annoying when those researching for the first time hit some of the poorer efforts first. Have to dig a bit deeper, me thinks. Take it all with a pinch of salt too.