JetThePilot,
If you go-around at minima, you pitch at a normal rate towards approx 15 degrees which will take roughly 4-5 secs. At the same time the engines will be spooling up towards TOGA and again that will take roughly 5 seconds. The engine thrust increase should be quick enough to maintain speed whilst carrying out the pitch manoeuvre. The altitude loss if the manoeuvre is carried out correctly will be roughly 20-30 feet. Even allowing for 3 secs pilot delay the total loss will only be 50-60 feet which is still safe if not advisable. If a pilot delays more than that then you cannot account for that behaviour or lack of ability. It is quite safe and proper to go-around at minima.