IMHO the immaturity you're speaking of stems from High Conscientiousness. When conscientiousness becomes obsessive, we worship The Right Way, The Right Tools, The Right Culture. We believe in tools and methods like they have some magical power. We get more concerned about the "how" than the "what" we output. Dogmatism creates immature thinking and debate.
"Woodworking Mindset" is one antidote: https://scottstevenson.substack.com/p/lego-mindset-vs-woodwo...
A lot of the time being too high in conscientiousness actually makes it super hard to be creative: https://scottstevenson.substack.com/p/how-to-finally-make-so...