This is a bit overly simplistic. There are lots of bad ways to develop software, and a few good ways. Placing yourself in a vacuum with "good people" who insist

This is a bit overly simplistic. There are lots of bad ways to develop software, and a few good ways. Placing yourself in a vacuum with "good people" who insist on starting from scratch without learning from the failures and successes of others who came before them is not one of the good ways. For the record, neither is dogmatic adherence to a methodology, but that can be useful as a learning exercise.