Bro if it looks like a child its a child (or teen) even if you say its a 1000 year old vampire or what have you. Lolis are explicitly designed to look like children , its not "just a bodytype". Lolicon literally means the attraction to young girls as a word, the word loli straight up comes from lolita which is a novel about a pedophile obsessed with a little girl
im not saying the decision in this case was necessarily correct or false but lets not kid ourselves, lolis are underage girls, its kind of the point, same way shotas are underage boys.