Please forgive my tergiversation. I fully trust that you know your path and I know how annoying it is to be why-dont-they-just'd. As I said, I'm rooting for you.
There's two dictionary definitions of tergiversate. One is the one you quoted, the other is one of desertion. Both meanings of the word are pejorative in the sense that the word comes with a connotation of betrayal of a cause. What I wanted to express was an acknowledgement that I understood the feeling that you get when someone who's clearly a fan of your work nevertheless does not provide a clear endorsement. It's easy emotionally to dismiss people who "just don't get it". But when someone does get it but chooses to equivocate, that can feel like an emotional betrayal. So I was looking for a word that covered that with the right connotation. I originally used apostasy, but it didn't feel quite right, because I wasn't really renouncing, more failing to fully endorse, so tergiversation it was. Of course having to write an entire paragraph to explain your word choice kind of defeats the purpose of choosing a single well fitting word over just writing a sentence of simple words that explains what you mean. But hey, I write enough technical writing, documentation, reports, grants, etc. all day where clarity is paramount that I feel like I get to have a little vocabulary treat in my personal writing ;).