I postulate the grid as a whole is antifragile, but not enough for the renewable era. We still don’t know what was the root cause of the Spanish blackout almost 24h after it happened.

Sure it is. That's exactly how it achieves the higher profitability. Safety margin costs money. Otherwise known as inefficiency.

Slack in the system is a good thing, not a bad thing. Operating at 95% capacity 24x7 is a horrible idea for society in general. It means you can't "burst mode" for a short period of time during a true emergency.

It's basically ignoring long tail risk to chase near-term profits. It's a whole lot of otherwise smart people optimizing for local maxima while ignoring the big picture. Certainly understandable given our economic and social systems, but still catastrophic in the end one day.

I would expect a paid professional in management discipline to be aware of such nuance but alas proven wrong again.

The chips shortage has been difficult, but it's also been little more than an inconvenience when you look at it in terms of goods being available to consumers or whatever.