It looks more like dry air than shear. Shear would have effected the eye, and that is still perfectly round.

Pressure is up to 902mb...that's still Katrina-level. The eye has shrunk to 18nm:

989
URNT12 KNHC 220942
VORTEX DATA MESSAGE
A. 22/09:12:20Z
B. 24 deg 55 min N
087 deg 55 min W
C. 700 mb 2245 m
D. NA kt
E. NA deg nm
F. 303 deg 134 kt
G. 228 deg 010 nm
H. 902 mb
I. 14 C/ 3068 m
J. 29 C/ 3057 m
K. 8 C/ NA
L. CLOSED WALL
M. C18
N. 12345/ 7
O. 0.02 / 3 nm
P. AF307 1618A RITA OB 18
MAX FL WIND 165 KT NE QUAD 05:34:00 Z
STADIUM EFFECT LIT BY MOONLIGHT AND BY LIGHTNING WITHIN EYEWALL