The "attention" he's going to get is people annoyed at him for breaking their shit carelessly over a petty dispute with a third party. I have some stuff at work that uses NPM, and I don't know if he broke it, but my thoughts right now are "fuck that guy" and "I would never use NPM again if I knew how catastrophically badly designed it is" and more broadly "if the JS community is this amateur and petty I'm writing my next server in something else"