Testing is a skill to learn like anything else. Teams that dogmatically apply any new practice or process without making a genuine effort to learn that thing will never extract value from it. If your team can try, fail, and learn from mistakes, you are in a mature organization. If your team gives up quickly because of fear of dogma or has no strategy for dealing with the challenges of learning new skills, it's unlikely your team will ever extract value from testing until the team culture itself changes.