Honestly, I think your attitude towards this is incredibly dismissive. Hiring people with experience is good, but not if that experience is at the expense of some of the fundamentals. Imagine hiring a graphics programmer because they had 10 years experience in front end web development, only to find out they can’t write any shaders, don’t understand any of the theory, and you turned down someone with 5 years graphics programming experience to hire this person instead? Or perhaps more similarly, taking a backend web developer with a decades experience, and putting them in an engine developer role. Then on their first day they ask you why you only use ‘new’ sometimes.