magp1e
I see from your profile that you are an ATCO -an it worries me that you seem to miss the fundamental point that the pilot was not instructed to go around - which he would have been trained for - but was instructed to 'just turn north' and then 'turn north now' - neither instruction of which constitutes standard practice for an aircraft to execute a missed approach or go around.
As I said, if you seem to think that this is something any pilot can do as it is part of a normal cct, then as an ATCO why don't you try asking a 747 to do this ('just turn north' and then 'turn north now') at 300 ft on final approach and see what response you get.