That is true, and that is how Valkey and other forks are moving forward. But the value wasn't just in the code- many folks contributed value by writing blog posts, making videos, and writing books or otherwise promoting "Redis". The Redis trademark owners had every legal right to change what "Redis" means by changing the license, but it creates a massive headache and a practically impossible task for everyone that gave so much to promoting the project to change all of these references.

Folks like to cite MongoDB as some great example, but Redis had significant community contributions in recent years. And AWS never used any Mongo code.