Liability to the vendor sounds like a good idea - too many cowboys out there. Also with stretched supply chains someone has to pay attention.
But full liability..? What if I make a crappy, low effort, cheap spreadsheet app, someone builds their business on top of it and it goes boom. Should I really be liable, on the basis of what I consider a casual product?
And then, the main point of the article, what if Vim deletes my files? The suggestion seems to be that Vim "owner" (???) is liable.
It feels like there should be some slider as to what liability the creator accepts (OSS - none, casual app - not much etc) but then we're back to square one, everyone disclaims liability etc.
Maybe it should be somehow linked to the price paid for the software?