Really!!!????
How many pilots have a difficult time interpreting the FTL's or misread them!
Cabin crew, in general, don't bother because, for them, they really do not matter. They follow whatever the company or captain tells them. Right or wrong. Even if they were right and hold to it they will be punished in one manner or another so they no longer bother.
As an aside, it astounds me how many captains simply go into discretion without discussing with the cabin crew.