Originally Posted by
infrequentflyer789
The MCAS acronym (definition only) sneaked out into some versions of the documentation but then someone decided that if it was effectively just an existing system, STS, why document it separately - it's all STS which is already covered.
Not to say that you're wrong, that may well have been the thinking. But the objections to that rationale is that the MCAS does something pretty different than the STS (almost opposite) for different reasons and in a very different flight regime ,so saying that "it's just the same "system"" is a weak reason for not disclosing it.