Yeah, in the previous story I mentioned[1] NANOGrav, which is on the brink of some really interesting science but relies heavily on Arecibo for their dataset.

They mention a delay of more than a few months of data from Arecibo would have very negative consequences, so an outright loss must be a very, very significant blow for them.

[1]: https://news.ycombinator.com/item?id=25046378