That looks like an MSR Whisperlite. I don't buy that this is the normal startup of that stove. The guy may say its normal, but that has to be leak.
PS: I did the whole second half of the JMT with my SVEA, on one fill plus an 8 ounce bottle , 2 days over schedule, with half the fuel bottle to spare. Don't knock the SVEA. OK, its a little heavy, 448 grams, but I'll put it up against anything for optimizing comfort, ease, reliability and just the cool factor of having a little brass and an old friend along.
PPS: If you know where to look, fuel is free. Check the hiker boxes: the one at WPSH was full of full canisters, and I left my half-filled fuel bottle among them. Easier than dealing with TSA.
