I don't get the point of this - people are upset that Redis is trying to make money from companies like AWS and Google?
No, people are not upset Redis is trying to make money. People are upset that something that used to be FOSS is no longer FOSS, and are trying to protect themselves from future pain by doing something that is very common in FOSS, which is forking a project.
Just because someone is trying to make sure the software they rely on continues to be FOSS, doesn't mean that they are out to actively hurt the original creator(s) of the original project. I don't know how you could possibly read the situation like that either.