Oh, Bullcrap. There are lots of situations where this is a very appropriate solution.Coming out of Nashville - John C. Tune, departing runway 20, you have to climb to 3000 feet before they'll give you any turns (due to terrain to the southeast, south, some slightly to the southwest, and lots of large metallic probes sticking up into the air.
Now, if you're departing IFR in a King Air or Beechjet, on a high IFR day (or even a VFR day!!!) and the guy in front of you is departing IFR in a 172, you're going to be pi$$ed when he can't turn until he reaches 3000 feet. Many times, I've listened to jets being told that they could go , and that they have the lead traffic in sight - but nope!
However, if you advise ATC that you can provide your own terrain and obstruction clearance, they'll turn you and start getting people out behind you.
So, there ya go!