Hi madinsomniax,
That’s quite some research … and thanks for sharing it with the Mattress Forum!
I’ve had several people report the same standard reply from FBM and of course they would love it if people believed it. As you can see from post #2 here and post #2 here though … they are selling Dunlop latex not Talalay and I believe their lack of disclosure is certainly not for “competitive” reasons but to make sure that people aren’t able to find out what they are really selling although there have been enough people disclose information about what they received to leave little doubt what it is.
Thanks again 
Phoenix