well, in real life getting an instruction being on glide but in 2500 ft ( very very uncommon atc gives you such a thing ) to go around ( which is more an instruction to abort the approach than immediately go around in this scenario ) of course there is no need to apply toga and trigger the speed and pitch commands on the airbus but simply to stop descend and smoothly climb out again . adjust vertical speed, adjust flaps as needed and do a normal climbout .
the airbus definition to "go around" is a scenario on short final , being fully configured and at approach speed. in this case the airbus design logic and instructions fully apply .
who gives toga being at 2500ft and roughly 6-8 miles from the threshold at 160 kts ?
this scenario and the thoughts about it seem to be purely theoretical.
best regards