Fire and Motion
https://www.joelonsoftware.com/2002/01/06/fire-and-motion/
Written 18 years ago, so obviously not about Kubernagus, but it does explain the same phenomenon. Replace Microsoft with cloud providers and that's more or less the same argument.
Going into it we knew how much of a PITA it would be but we vastly underestimated how much, IMO.
Would not do again -- I would quit first.