A Cessna 172 can get down to 34kts with full flaps, but that’s still lots of wind for a bird to get a proper attitude and its wings oriented.
I am not sure where you are getting your numbers. Here is link to a typical Cessna 172 Pilot's Handbook.
Cessna 172 Pilot's Handbook.pdf
On page 5-12 there is a chart that shows the airspeeds that stalls occur at various flap settings. With full flaps it shows the stall speed is 48 KCAS (knots calibrated airspeed).
But you can't fly a Cessna 172 around safely at low altitudes with full flaps barely above the stall speed. When a 172 stalls the nose can end up abruptly pointing toward the ground without enough altitude to recover.
If you look at page 5-1 you will see a chart that demonstrates the source of some confusion about a 172’s stall speed from sources such as Google. At high angles of attack approaching stall there is a significant difference between indicated airspeed and calibrated airspeed. At 40 knots indicated the calibrated airspeed is actually 49 knots or 56.4 mph.