Rocket thrust providing brake force? Well, the fuel (liquid oxygene and liquid hydrogene) must be carried up to 100 000 m altitude and I wonder what weight it has.
You have this insistence that fuel can not be carried with without it being used up. Your essentially saying that a car can not go to the shops and then back again because you only put enough fuel in for the trip there.
In a zero gravity field, e.g. vacuum space, you cannot carry the fuel with you to brake after the trip, because you need extra fuel to get that fuel off the ground to start with and you get too heavy.
It is slightly different in a strong gravity field, e.g. between ground and 100 000 m altitude on Earth. Just to get off the ground, you need plenty energy and then, suddenly you are at 100 000 m altitude and start to drop down again.
If you just ascend to 10 000 m altitude, there is no problem. You use external means to brake when dropping down, e.g. a parachute in fairly thick air.
But 100 000 m altitude! No external means are prossible. Air is 1000X too thin. There is no air to talk of. And internal means? Fuel to fire a rocket engine! Do your calculations. Can you get it with you up to 100 000 m altitude to suffice to stop you coming back? I doubt it.
So what did we see on the video? Probably a stunt starting at max 15 000 m altitude.