Limp wrist myth?

I was out at the shootin' range today and decided to try some "limp wristing" I tired limp grips and let the muzzle flip .. no jams.

I was shooting a glock 26 and an xd45 service.

both with handloads

9mm

115 fmj 6.4 power pistol cci 500 oal 1.135

45 auto
200 grain round nose flatpoint 5.8 grains 231 winchester large pistol

i was not an extensive test but still. What gives?