Engineering tow manuals stipulate max tow speeds. Don't have them in from of me but seem to recall 25k as a maximum but this is not during turns.
The Ramp guys do not have access to the Engineering manuals and have no idea about the restrictions and limitations. We have highlighted this to Qantas but the could give a flying ........
They just want the quick and nasty option and if something goes wrong, they then pull the procedures out so they can blame some poor bugger who was none the wiser.