jw11,
I have no probs with a/c "powering back". Indeed I have seen a DC8 do it..albeit on a disused runway.
The thread was using "Reverse Thrust" to stop, or at least [slow down] on the Apron ,
" So now that the originator of this thread has discovered that reversing (from a standing start) off stand is a common practice in that part of the world which has more aeroplanes than the rest of us put together would, perhaps, like to have a rethink"
No mention of pushback....rather a Taxi/Stop question
we aim to please, it keeps the cleaners happy