As a prospective customer for any product or service with which I do not have firsthand experience, I always rely on reviews to guide me toward making the best choice. Whether it's an expert or a novice consumer, hearing input from someone who's touched it, held it, used it is always helpful. This applies to home appliances, cars, knives and anything else out there.
We can sit here and say 'I don't care what reviews say' because we already own and love CRKs, but most people don't. I'm willing to bet that the vast majority of people in the market for a $400 pocket knife aren't going to pick one randomly. Just like people don't go to Amazon and buy a $30 blender randomly. At the very leasft, they see how many stars it has. They want to know they're spending money wisely.
Reviews - specifically video reviews - help people see the product, understand its features, and set their expectations before a purchase. Before I bought my first Sebenza, I watched every video I could find about it. Apostle P's review was especially influential. To hear a grown man gush about a knife makes you believe it's pretty special. And it is.
I don't always agree with any reviewer. Thousands of people can rave about a product, but I may hate it. People might say something is pure garbage, but I'll I love it. Regardless, it's helpful to hear both sides when making an expensive purchase.
Personally, I didn't watch Nick's first two Sebenza reviews, but I find his Large 21 review pretty informative as far as reviews go. It's almost entirely positive (as a Sebenza review should be in my opinion), but it objectively points out a few things people might not like. It's not overly critical or overly fanboyish. I think prospective buyers will find it helpful, which is all anyone can ask of a reviewer.