Why was the Singularity removed?

[atomic1fire]

I think the singularity did give a sense of urgency, but at the same time you could literally release that thing on accident, and either need to quickly build a bomb to destroy it, which most people had no idea how, use the RD's bomb, or call the shuttle.

Plasma fires still exists though, allthough I kinda miss station wide accidents but then I remember that the blob exists and is way worse then any meltdown or singularity.