Well, as a pilot who regularly (monthly, maybe?) sees go-arounds from about 200' at Heathrow, I just think "Oh look, they've gone around, then." And then watch to see whether they follow the missed approach procedure and raise their landing gear. The two things that are the easiest to forget....
Yes, it does look impressive, but pilots are taught it from the time they have about 6 hours flying experience, so it's hardly a big deal. I daresay the pilots in the go-around in question probably had a hunch from about 1000' that they weren't going to be landing off the approach.