LIGO detects most massive black hole merger to date

A month ago, the proposed NSF budget would shut down one of the two LIGO observatories in the US, wrecking its ability to triangulate the location of events such as this black hole merger. A shutdown would also severely damage the noise margins and detection rate. Does anyone know if the shutdown is still planned? (I couldn't find any recent info.)

https://www.science.org/content/article/trump-s-proposed-cut...

Given that there’s a handful of gravitational-wave observatories running globally at this point, why does the closure of one LIGO wreck triangulation?