... so it's not going to ever be possible to change the way those work.
I appreciate that your answer is very straight.
You could certainly write your own template tag function that did the parsing - and I believe that was the intention of those who designed this feature.
Here lightmare alleges that "ES source code is first parsed, then executed. You cannot alter the parser's behaviour with a run-time function." Is your allegation totally unrelated with the above statement?