I am not familiar with that aerodrome, but looking at all of the procedures, approach, hold, and departures, this is just like many other airports and procedures, when you go missed, depending on where you go missed, you still fly down to the MDA,or in this case 1250, level, and follow the missed track.
Virtually no where, when you go missed, can you just climb to the hold alt. This conflicts with all of the procedures that hold over, and/or cross the runways.
As stated before, at this particular airport, if you went missed at 2nm, and climbed to 2700, you would be in direct conflict with the hold, the approach, as well as many of the departure procedures.