It would be ridiculous to expect Canonical (and even moreso, the author alone) to rewrite juju in another language as a simple comparison. Even if it were feasi

It would be ridiculous to expect Canonical (and even moreso, the author alone) to rewrite juju in another language as a simple comparison. Even if it were feasible, the comparison would be polluted by the experience gained by building the application initially (or you could rebuild with a completely new team of developers, but then you're introducing a whole new set of variables). The best we can reasonably do is compare applications aggregating on language.