This is absolutely the truth, and based on my experiences, absolutely a problem. New graduates are promoted through the ranks at startups so quickly, yet they have terrible interpersonal skills, and their code reeks of naivety.

I've watched an "architect" from such a company write the most tangled spaghetti western of code for the simplest CRUD app that even his lower level colleagues were appalled. Of course, those same colleagues then advocated a complete re-write of the working codebase instead of incrementally fixing the code, causing about 6 months of new work for the company before they could start on hardening or new features...

No, experience doesn't automatically make you right, but it does increase the likelihood.