Damm straight. I never spilled one drop on my Jetta using the hi-flow, and I'll be dammed if I'm going to hoof it b/c bumfluck didn't bother to install the smaller spout.
Its all about control. If you have problems "controlling your spray" and just can't handle the big pipe... Maybe thats a personal problem. Certainly isn't mine.
And the only diesel that gets the honor of riding inside my KJ is pure BIODIESEL. None other.
Oh, one final thought on this: Most real DRIVERS couldn't give two craps about a little car or Jeep at the truck pumps wasting their time. They are more interested in who is either BADLY confused about what fuel goes in their car (so are preparing to laugh at the idiot who misfuels) or are curious about the ride in general, and give a big THUMBS UP to the proliferation of diesel technology. Especially when they hear the mileage!
Motorhome, Jeep, VW Jetta. I've used them all as a hotel in the truck parking area, and I've filled them all at the high-flow pumps with nary a word of discontent from the truckers. Its just not that big a deal when they have other drivers killing 30 minutes in front of them. Besides, when they are only allowed 10 hours per day driving, it's time they have to spend anyway.