It Open Source so no worries
As more people use open source and more applications and websites get dependant on what were obscure libraries, the whole single point of failure thing will become more apparent and more likely to break stuff or expose things to a security breach.
Take a look at NTP for a disaster waiting to happen.
You need to have a more formal set up once stuff becomes very important to a lot of people having one block in his shed in the garden as sole maintainer is a bit of a joke.
I would imagine insurance companies may start asking what libraries are in place and what support agreements there for code maintenance.