It has nothing to do with logic. It's purely about sound, that's it. In every way, logically, turbo charging makes sense. And we know the 718 has a four rather than a six pot because they couldn't fit turbocharged sixes into the space available. But those fours – and sorry for those owning one – sound bloody awful (I took one out for a test drive recently – best handling car in the Porsche range in my humble opinion; utterly amazing fun on twisty B-roads. But the noise! I couldn't live with that engine sound).
If it was entirely about logic none of us would bother with sports cars, we'd have electrically powered SUVs, ha ha! But sports cars are about emotions, and sound figures very highly in that emotional state.