Whats being recommended is in stall training:
Carb Heat away, then power.
In real life though, which is why we spend so much time training, my argument is that habitual 'carb heat then power' may not be best at all.
Okay at altitude prob no great probs which goes first but low on a short final, different story.
NZ is mostly a Cessna equipped country, putting 'both to the firewall' almost simulatneously is easy but in other types not so.
Hence if we train something one way, when the time really comes, faffing about to stow heat could/would become the 'automatic' priority, and in a non-Cessna that could be dangerous. Wudn't you rather you rather be pushing for some go-forward first, rather than trying to get rid of a bit of heated air in the front end?
The loss of 3 or 4 % of rpm when full power is requested with Carb Heat ON, is hardly going to be noticed for a few seconds is it?