yes, that is my conclusion, if you want something to survive, definitely vote 5, no matter how flawed the proposed form is. If you want it gone, vote 1. If you do not care, why even fill out the question. So vote 1 or 5 and focus on stuff that matters to you.
I assume this is very different from how most people actually fill out the poll however. I assume most people see 5 as 'great', 4 as 'I am for it, but it could be better', 3 as 'I do not really care either way', and 1 and 2 are 'I do not like this' to varying degrees.
I expect most votes of 4 to mean 'I like it, but I want improvements', and yet you have it as 'a vote of undesirability'. You are probably correct that it gets interpreted that way by WotC given the results, but I don't think most people understand that and vote that way, and that is my problem with the approach.