Here's another quick thought. You're disturbing a stabilised approach to reduce the risk in the event of an engine failure for the last 30 seconds of your flight.
No one is saying to disturb or conduct an unstabilised approach at all. They/we/I are just saying to not lower all your flap, until you are going to make it in.
Lets say its at night, and you've just flown YWGT-YMMB. So you've flown for the last 2 hours without being able to glide to a suitably lit runway and you're now worried about the last 30 seconds?
The last 2 hours you have been above LSALT in cruise with time to plan your glide and off field landing. A failure on final approach in landing configuration will have you in the weeds before you probably comprehended the gravity of what was happening. This is the time you need to be prepared for an emergency.
A little bit of prior planning and personal SOPs help prepare your recovery in a future upset.