Having Batman start using guns to mow down criminals like the Punisher would also be a change, but would it be a change we'd want? No. Change is essential to the evolution of a character, but only if it's good. I'd argue that a lot of changes to Superman have not been good. I'd prefer for DIFFERENT changes to occur, DIFFERENT progression. Let's not pretend that there's an either/or situation here where you're either for change or against it.
I myself am against both bad changes and characters being trapped in amber forever. Thus, the binary some are proposing is simply false.