I think people like us (at least me) miss a lot of things, some more important than others, and we have to carefully choose what we spend out time on :)
I'm about to open source it now. Which means I just did, but haven't announced it yet. https://github.com/pipes-digital/pipes now contains a very new version you could run locally.
r-w is right though: More users paying for pipes would allow me to invest more time into it and have more requirements covered.