You are absolutely right - you can deliver better work with adequate tools.

It's like saying you could build a wooden house with just a hammer, and a simple screwdriver. Sure yes, you could. But why not get some modern power tools that will make you work faster and better.
But no matter what tools you are using, it's kind of implied that you know how to build a house.
Same thing with movies. You have to know what you are doing or the best tools are worth nothing. But when you know what you're doing, your talent might be wasted if you are using horrible tools.

I think the target market will be
1. rental houses and
2. the Slow Mo Guys youtube channel ;)

Seriously, I think at least 95% of these cameras go to rental houses where they are rented once in a while by someone who wants to get a cool effects shot for a music video, commercial or something like that. Or research of course.

When I read the title, I was thinking "please don't say 'add black bars'!"
But at least he mentioned it last, like an afterthought.

At least on the older Gopros that I know (up to Hero 4) there is no setting for the shutter. It's always on auto, I don't know why he listed it as a setting at all.
What I would have added: under no circumstances set the sharpness to high! It looks horrible!

The dude probably filmed this alone, he pre-set the focus and then missed his position by a few centimeters.

Well, most people seem to want slimmer, lighter weight notebooks with great design, and that's what Microsoft and Apple are delivering. You can't make these machines so extra slim and fancy looking without glueing and soldering them together. I am not saying I like it, but that's the way it is.