This is quite intriguing. But DHH has left so many details out (at least in that post) as pointed out by @breadsmasher - it makes it difficult to relate to.
On the other hand, like DHH said, one’s mileage may vary: it’s, in many ways, a case-by-case analysis that companies should do.
I know many businesses shrink the OPs team and hire less experienced OPs people to save $$$. But just to forward those saved $$$ to cloud providers. I can only assume DDH’s team is comprised of a bunch of experienced well-payed OPs people who can pull such feats off.
Nonetheless, looking forward to, hopefully, a follow up post that lays out some more details. Pray share if you come across it 🙏