The pity is that publisher Alphapolis has never actively commissioned anime adaptations of its LN titles (except maybe for GATE), in comparison to other companies like Kadokawa, ASCII Media Works, etc. Because this is 1 title I'd like to see animated.
I spoke about this in another forum and the opinion is that Alphapolis is more focused on quick and easy profits from LN/manga sales, and don't really care about long-run success (which you would try nurture with an anime).