Why? There's no reason to do something overly complex when something simple works. I think some people think that companies do random "evil" shit just for kicks. It is all about efficiency and money. Potatoes are cheap as hell, and processing them like this is really efficient. There would be no reason to go and do something overly complex and use other products. It is really easy to cut a potato in to fry shape.

If you want to see it happen, go to a In n' Out. There they take the potatoes and stick them in a little hand press device and when they push down, a pile of uncooked fries comes out the other end. Same concept as the water knife, just not a big assembly line process.

When you are talking cheap food preparation they keep it as simple as possible because the keeps it cheap. If anything is added, there's a reason like the Dextrose (which is just a sugar).

The generic food thing is rather silly since often as not there is more than one brand of food and they taste different. At most one of those brands is being used as the store brand which means the rest will taste different. Sometimes it is totally different as well, the store may contract a major company to make it, but still have their own formula.

Basically store-brand food is just another brand and should be treated as such. It can be very tasty, I'm personally a big fan of Safeway's store brand olive oil, but acting like store brand food is the same as brand name is the same as acting like Coke and Pepsi taste the same. No, it's different stuff, buy the stuff you like the best.

I imagine not much, because he isn't making any outlandish claims. He is doing, by his own claim, "exhibition shooting" meaning trick shooting. He's doing some very precise skill trickshots and doing them extremely well. He's not claiming to have rediscovered some long lost art, or that his shooting is the One True Way(tm).

In particular you'll notice that he is shooting at targets thrown more or less straight up at a reasonably close distance, presumably of his choosing. Between an amazing innate ability and presumably tons of practice, he can pull off amazing shots. However he's not claiming he can do it from horseback, or that ancient archers did this shit all the time.

He claims to be a top notch exhibition shooter that can hit virtually anything you throw, and indeed he is and can.

Because restricting your diet unnecessarily is silly, and can make eating healthy a more difficult proposition. For most people without food allergies or sensitivities, it does not make sense to restrict something like gluten for no reason. Rather it is better to choose what you eat based off of what is healthy, provides the nutrients you need, and doesn't have an excessive amount of calories.