Yes, I agree with you both. These so called 'studs' should be fucking to the last few seconds before pulling out and spilling their spunk. If nothing else, it's a bit of an insult to the 'lady' if you prefer wanking to fucking her ass or cunt!
If you (generally speaking) have to stand there for 2 minutes jerking yourself off just to cum on her face, you could've spent about 90 seconds of that still fucking that ass.