This is like Bob changing his name legally to Chad.

It can, and does happen:

https://en.m.wikipedia.org/wiki/Denali%E2%80%93Mount_McKinley_naming_dispute

This is not redefining the thing by changing the name. That would be calling it something other than a gulf, which it is, and demanding that everyone accept that it is now a different geographical feature.

Analogy is wrong. It doesn't work.