I still consider the main report to not be substantiated. Israel claims that they know where the stockpile is and that they have been monitoring sites[1][2]. Some official even claimed it’s mostly under the rubble. Not sure why one is to believed and the other not when neither have hard evidence.

1. https://www.jpost.com/israel-news/article-858895 2. https://www.jpost.com/israel-news/article-858619