I think an over speed buzzer, with paperwork, is preferable to snatching at the yoke at Vmo.
Training and education! No need to snatch, probably the same guys who will try to pull the wings off during a TCAS RA. Train it in the Sim or do it with a checkie on the line. Good doses of regular hand flying will teach the technique of leaning into the controls if a big movement is required. Yank it around the sky normally and you'll probably yank it during an overspeed.
Agree though, if a good "lean into it" doesn't hold the speed, let it happen.