One brand!
Look at Jon Shafer's experience with At the Gates. A Civilization designer. Changed too much, and got 3/5 star averages. A one-man show, a literal indie game, comparable in resources to Civilization 1. This is what Meier is talking about. Tossed out of Paradox, for that matter.
Firaxis's Beyond Earth has barely 1 person who played at least 1 minute for every 10 that bought the game. 9/10 buyers just handed over money out of nostalgia, never playing a minute, nostalgia was and remained the only compelling association with that product.
Okay, was it a bad game? Who knows, hardly anyone played it. That's the crux of what he's saying.
We've barely covered just Civilization-adjacent products.
Anyway, it's preposterous - that Sid Meier has never heard of Paradox, that he's unaware of their success, and that he hasn't contemplated it. It isn't about strategy games as a whole, it's about new games, about new experiences and changing 30% of the formula every year instead of 3% of it.