This sounds cool. Gradle is recently my build system of choice, which means I hate it less than others.
I could see how using a less wild language would be nice for a build system.
I enjoy that Gradle is, in principle, a language/platform agnostic build system. Though unlike Make, it seems to force you to jump through at least a few more hoops to change the compiler (especially if that compiler is for an “unsupported” language) - I’m all for plugins and obeying conventions where it makes sense, but I felt that using a C-like compiler was a lot of trouble in Gradle (it wasn’t C, thus the trouble).