To be fair most of these polls don't show how inflexible those who prefer TB or RTwP are. I think for both those who prefer TB and those who prefer RTwP there is a large chunk where it being the opposite of what they prefer is not a deal breaker.
That being said I support their being both modes, but it's not up to me and Larian has reasons for their choices.
In my case both are a bit of a compromise! I'd prefer 3rd person but will tolerate isometric (or overhead: whether or not anybody else is pedantic, I did to engineering drawing back in the mists of time when I was at school, so...) and so on. I was going to say "a bit like later Bioware" but they were a bit action-y for my liking. I guess there's no pleasing some people.
Anyway, the point being that I'll play it pretty much whichever approach is on offer. And if there're several, I'll probably chop and change as the fancy takes me.