I'm not the author, the guy you're replying to is. The article that you quote says that crossing function barriers and joint compilation are issues with numba and cython. So does the comment you were replying to. You've failed to articulate where the perceived discrepancy is.
Authors can have inconsistent opinions, and can sometimes try to retroactively reinterpret something they wrote to serve a different purpose later on. That is happening here. It’s not a big deal; I’m just saying for this reason I don’t agree with your claims about my comments, nor your overall comments about numba (even after re-reading your link and comments and deliberately reflecting on them).