How often was that pipeline required to be inspected? Were there standards that pipe was supposed to meet to safely avoid rupture, would it have been scheduled for replacement if EPA deregulation wouldn't have happened?

I don't know the answers, but to say a ruptured pipe could have "nothing to do with politics" is just wrong. It's very possible it could have been avoided with stronger regulations.

Incidents like this should also be used to inform future policy regarding inspection, structural, and safety requirements for both new and old pipelines, to strive to minimize more incidents like it in the future.