I disagree with the reality of the situation portrayed in those videos. Most home robberies are smash-and-grab type situations. They grab whatever they can get within a couple minutes that's within easy reach. And stuff they know they can sell for quick money: computers, TV's, jewelry, tablets, phones, cash, medicine cabinet stuff, etc. They are unlikely to try to get into a large gun safe. However, if someone breaks into your home knowing you have a safe and comes in with angle grinders and huge pry bars, they are going to get into your safe regardless of the quality or what you paid for it. A higher quality might take another 60 seconds over a Cannon or Sentry, but they WILL get into it if that's their intent. The purpose of a safe is not to make your stuff un-stealable, it's to make it that much more difficult for them to steal so that they must think "is the potential pay-off worth the time/effort to get into it"? Most criminals that would do this wouldn't know that if the safe says "Cannon" or "Sentry", it might be easier than if it says "Graffunder" or "Ft. Knox" on the front. To most of these types, it's just a safe.
Further, is there room where your safe is to tip it over and stand around to get leverage like they are using in the videos? Doubtful. Could they move it from the closet where it is to do that? Maybe, is it bolted to the ground. Even if it's not, how heavy is the safe by itself? What about WITH the contents in it?
IMO, a residential safe is about preventing the smash and grab robberies and should be in addition to other safety measures; locking doors, not making yourself a target, an alarm system, monitoring, etc.
Unless we're talking some ultra-expensive or rare gun collection, I would be just as content with an inexpensive $1K safe in my residence as I would with a Graffunder safe. That's just my $0.02.