The problem isn’t Excel. It’s trying to get Excel’s accessibility in infrastructure whilst demanding engineering reliability. You cannot have both. Kubernetes won’t accept Excel-style disasters, so it still needs specialists; now specialists who must learn the abstraction and the fundamentals.
You’re right: work not done by specialists often wouldn’t happen at all. That’s the choice. Accept Excel-esque failures for democratisation, or accept expertise is required.
My point is that currently available tools promise both, deliver neither.