I do not know what to tell you. I read the series before the hype started, and it was fairly enjoyable. Nothing to call home about, but it is ok. People are getting kinda worked over on Hestia's character design, that's all.
And let me remind you, this is small when compared to the time MaiHime and Rozen Maiden appeared. They momentarily eclipsed Touhou for a few good months. This is one such a case.
Too many hype and it later will go down quickly. I just not like it that much, other than the fact the girls are cute. But they only 2D man, and I only like some of them :/
Beside the only reason is the artist is Kiyotaka Haimura. My favorite artist