Every thing deployed at Google has all kinds of frameworks and shared libraries and tooling. There are many policies in place to get insure they get newer versions of shared code, such as:
https://opensource.google/documentation/reference/thirdparty...
And to maintain these kinds of things, it isn't uncommon for unfunded mandates to be pushed on people that own various tools, such as this one.
Meaning, even to keep a website up at Google, there will be some maintenance burden. Also, I could imagine Chrome pushing some update that would make all of the usb pairing stuff that they do here break at some point, and they will have to do work to keep it working.