The local best and regulations-aligned practice is not to log such as flight time. Airline rules antipodean to you.
The same logic and similar definitions as quoted above, also applies for return from taxying which is an infrequent but common occurrence. Unlike RTOs that are actually very rare. The intent and movement for the flight are there, but flight itself wasn't and hence no logging of total time.
In practical terms, everyone
would enter the flight in the log with details for the memory lane but only fill the startup and shutdown times, not the duration.
Congratulations on handling the event so graciously!