frankly, this revelation has put me into shock at what passes for "good engineering" in "professional" game development. and is making me seriously reconsider whether my time spent on this forum is time well spent.
Making games run faster, use modern hardware more efficiently, and feel more responsive to the user.... is bad?
There's no need to be rude just because you got an answer that contradicted your asserted preconception and gave you an opportunity to learn new techniques that are applicable to certain situations. If you're going to simply ignore anything that doesn't fit your preconceptions, and invent new self-contradictory reasons why you should ignore them, despite evidence disproving your objections, then no, you're not making good use of your time.