"If Boeing had altered the auto speedbrake design as a direct result of the Cali tragedy"
They did. About four years ago. But since your average EK 777 pilot can't be arsed to read the manual almost nobody noticed.
The next time some plonker creates an ASR that indignantly reports that he got a "Config Spoilers" warning in flight when he knows that all config warnings are inhibited after V1 for the remainder of the flight the response should be.....
RTFM