Loli is an official and popular tag on Japanese art websites like pixiv, it’s not a serious matter for most people
As for accuracy, here is the Japanese text on that section of the answer and you should tag a translator you trust
そこにロリコンがまざって石になっても、どんな感情で石化させられたのかは判定できません。だからキミのロリコンはバレませんが、石化されちまえ!