Plus, let's get real here... there's more people that buy hood pins for looks than functionality. They think it looks cool (aka looks like a race car or "race inspired") and so they get them. I see a lot more V6 Mustangs with them than I do GTs.
What exactly is the split on cars that you know don't need hood pins vs ones that do?
The last car I saw was a new edge that had a Kenne Bell 2.6, slicks and skinnies and a 6pt cage. But I better tell him he doesn't need those pins.
I'm not going to lie, my car will get hood pins of some sort before I hit the track, because new edge hoods are pretty flimsy, and catch a ton of air. That's pretty unsettling at high speed, and the results are disasterous. Of course I'll also be using PTFE lines, a scattershield, a plate for the fuel lines near the flywheel housing, and keeping the regulator ahead of the firewall and away from exhaust, per NHRA specs. But hey, I don't need all that, do I?
No, it's not like saying that at all. You're using an extreme example to try to justify the use of hood pins. A proper example would be having your fuel lines wrapped inside a second protective line incase all other lines of defense fail for some reason. It would be more comparable to a second or third scattershield incase the shattered clutch happens to go through both the bellhousing and 1st scattershield. It would be comparable to putting a 2nd driveshaft loop on your car for... idk, just incase.
Actually when you put it that way it makes plenty of sense.
Plain rubber fuel lines will work. But lining them with PTFE AND a braided outside is additional protection. Like hoodpins.
A plain bellhousing and tunnel will work. But a scattershield gives you an extra layer of protection.
Your car doesn't need a driveshaft loop, the floor should protect you just fine, right? The loop is another level of protection, like hoodpins.
It does not help keep the motor cool. The motor is operating at a constant temp per the thermostat/fans/radiator/coolant in the car. Besides, your motor runs better and more efficiently at higher 190-205*F anyway. I'm sure I'll get blasted for saying this also though.
But counter to your previous point, a cowl hood can also help remove air from the engine bay, reducing recirculation and improving heat transfer.