Yeah there's plenty of room for criticism when it comes to people reading into a thing that aren't really there, but my god there are some types of people that you can slather on the symbolism so hard that anyone with an analytical mind instantly hates it for being too pushy and they still won't understand.

Like yes color language is a real thing that real authors often use in writing, sometimes even unconsciously because that's just how we group with the colors of symbols in our head. Red often means stop, danger, or passion. Even if a writer didn't think about it actively, you probably don't see bright yellows and pinks in a situation that is meant to be dangerous. They're likely to use some form of red just because that's what comes naturally to us.