That sounds odd ...
There simply MUST be some way wher game recognize that you should have advantage from high ground.
Then you have two ways of negating that ... either remove that recognization, or remove the effect. I dunno how to say it differently. :-/
Switch was simply an example, as it seems it was bad one ... but as i said, it was not supose to be manual for removing high ground.

You are mixing two things together ...
One thing are relative numbers that determine relevance of the survey ... IF the sample is variant enough to be relevant.
Another thing are absolute numbers, that only shows how many people are supporting specific idea ... if the numbers are big enough to be relevant.