Yes. I didn't know there was a distinction. I am not too familiar with transmissions as you can tell.
I can say that 1 transmission shop and 2 lube centers I called would not do more than what they called an "exchange", which would only have replaced 4 of the 10 or so quarts with fresh fluid. (only the fluid in the pan would have been replaced, and they would not replace the gasket or filter which in my mind seemed questionable).
After blowing out my trans coolant line, I lost ALL of the transmission fluid and had to replace it from nearly bone dry. Seems this is what they were advising against, and yet it is running smoother than I could have ever expected.
In the end, their claim that replacing all of the transmission fluid can freeze my transmission seems to be false, and it seems they were simply not wanting to touch an old transmission because it may not have been worth the time and money for them.