>>213772330 (OP)
The official explanation is that they created those tunnels during the coof pandemic so they could travel without interacting with strangers and avoid exposure to the virus, while they were going from one synagogue to another. And when a blood stained kiddie mattress was found in the tunnels, the media instantly dropped the entire story and haven't talked about it ever since.
Same happened with the monkey pox scaremongering, all the 'experts' went completely silent when a dog owned by two gay men and their adoptive son caught monkey pox. It raised too many eyebrows, so every news feed instantly ditched the story.