Uh, yes it did!
All our buildings in LA are still standing because KSM sang like a canary!
And that is a damn fact!
The reason all the buildings in LA are still standing are:
1. There hasn't been a major earthquake recently.
2. Some border patrol guard got lucky and stumbled on the terrorist sent to blow up LAX.
There has been no (read that as zero, zip, nada) information published that would lead anyone to conclude that any information from KSM resulted in an LA terror plot being interrupted.
That said, it's a free country and you are free to believe nonsense if you choose. But if you want facts, you have to do your homework (which you've never been fond of).
BTW, please include in your thinking that practically everything the CIA put out about waterboarding under the Bush administration was not quite true and has since been corrected.