I agree, especially because I'm not even sure the pushed competitor solves the problem that's being highlighted here.

All the horror stories so far seem to be about people using a lot of metered resources, like bandwidth, and then getting billed for those resources.

With the pushed competitor you can self-host your Vercel or Netlify alternative on your own EC2 instance - but then if someone downloads 60 terabytes worth of data from you, you still get to pay for that bandwidth. You still get an unexpected large bill.