Because it's more logical.

It's literally not. I think one person has reached the Ohio River in Cincinnati. The Allegheny gets reached multiple times per season. Are you trolling?

Literally, eh? Have to assume one of us is trolling at this point and I know it's not me.

Well then maybe you would like to explain how it's logical to replace one that gets reached regularly with one that has been reached one time in 20+ years?

Cincinnati > Pittsburgh