What risk do they have sharing that strategy? It is an extremely basic and common strategy

  >>> the use of minimalist phone and a laptop is something I'm planning for all my travel

This is a strategy recommended to literally every employee that works at a national lab. Similarly to anyone who works with a security clearance, SBU (secure but unclassified) materials, or even ITAR (International Traffic in Arms Regulations) (which includes anyone that works in aerospace. A rocket or a jet is "missile technology")

I don't think their comment has any PII or even signals to adversaries how to fight back. It's just common for people to have lots of information. Sure, adversaries can press you about this but at that point they're probably going to press you for another reason anyways.

> What risk do they have sharing that strategy? It is an extremely basic and common strategy

Do you also reveal your hand when playing card games? On the basis that the other players already know all the cards anyway?

My strategy is that I hold my cards to my vest. i.e. I take a small peak and then leave them on the table.

Having revealed my strategy for keeping you from seeing my cards, were you able to learn more about my cards after I have revealed my strategy for preventing you from seeing my cards? If so I'd like to learn. If not, then reread my previous comment.