Hi busav8r,
It is a better reaction than pulling back on the side stick.
A340 zoom-climb inquiry backs shock tactics
"The A340 (F-GLZU) had been cruising at M0.83 northeast of Guadeloupe but a wind gust triggered an overspeed warning as the aircraft's airspeed rose to Mach 0.87. Reflexively, the first officer disconnected the autopilot using the side-stick button and pulled back on the stick for 6s." !!!