Bally Heck,
With all due respect, read a little further ---- at 500 agl, the A/P “kicks” off the drift, and from there to touchdown it is all sideslip, the numbers you have quoted are very close to what the 744 does under the same circumstances.
Would anybody like to comment on the L-1011 A/P coupled in a cross wind, I seem to recall it had a much higher A/P coupled limit than the 767 or the 744, which is 26 kt or so.
Tootle pip !!