Yes, I take it's a hypothetical scenario, at least practically, if not theoretically also. My point with that hypothetical scenario, which I should have more explicitly stated, is to counter points of views I often hear on importance of life to the universe, etc.

In my understanding, it's not about the universe as a whole; only about the impact left predominantly on the lives on the earth.

https://en.wikipedia.org/wiki/Anthropic_principle