Frozen... are you a qualified 737 driver?
The flap 30 limit speed for this aircraft is 175kts. The airspeed is above 175 for a period before the blowback activates, thus they had a flap overspeed in my book. Blowback is designed to prevent damage to the flap system yes however it is reactive, not predictive in operation.
In my opinion if that was the best he/she could do at flying that aircraft their licence should be torn up or inspected for its validity.