I honestly didn't intend my post to be a troll or disingenuous. I apologize if it came across as such.
As I've said elsewhere, I am concerned that they're flattening the power curve TOO much for my tastes. And going rather far from the games roots and from part of what makes it D&D to me. And so I probably overreacted to that statement.
No, I think you are absolutely correct. I really don't think high level characters should be fighting orcs, be they super-orcs or simply huge bands of them. They should be fighting more fantastical monsters, IMHO.
I play Lord of the Rings Online. Due to the nature of its license, you fight a lot of orcs. You fight orcs at low levels, middle levels, and level cap. Along with goblins, wargs, bears, boars and wolves.
I am sick to death of fighting orcs, goblins, wargs, bears, boars and wolves.
Besides the lack of variety, it doesn't make you feel like you are getting tougher. The opposite, actually. In the tutorial area (or former one) you a starting character and here you were, mowing down goblins left and right. You felt heroic.
Then 50 levels later, you're in Moria, You're still fighting goblins. Only this time they are tougher. They disarm you every single fight (probably once a minute) so not only are the fights longer, they're more annoying. Rather than making more exciting and tougher monsters, they just gave them more hit points and a bunch of debuffs. Challenging? No. Fun? No. Quick and easy to do, yes.
The same thing goes in D&D. You started off fighting orcs, but when you hit high level, are you still fighting them? No, you've moved on to Giants. Different types of giants, working up the scale.
Strictly speaking, they aren't that different from orcs - monstrous humans. But they felt a lot different. You could make an Orc with the same stats as a Stone Giant, but it's simply a lot more fun fighting a Stone Giant than an orc with Stone Giant stats.