How do you define out-specced? The MBP pioneered the HiDPI screen during that time, sure. And it used strong CPUs (but this was always the case). But it still used fairly low-end GPUs, by contemporary standards. Once the competitors figured out how to make their own laptops with HiDPI displays, the status quo went back to what it was before.
What has traditionally distinguished Apple computers from the competition is functional design, functional balance and premium build quality. I believe this is still the case. At the same time, there is nothing revolutionary in what Apple has been doing with their laptop in the last decade (maybe aside from MacBook Air, which indeed has transformed the entire industry). The development of the PowerBook->MacBook Pro->MacBook Pro with Retina Screen->MacBook Pro with TouchBar is a strictly evolutionary one. It has followed exactly the same formula, continuously enhancing aspects of the same basic design*, which I would describe as "classical laptop". In this sense, indeed, Apple is the least innovatory company out there

They don't try to reinvent the laptop formula, only to bring it to an ideal (of course, the notion of ideal is highly subjective).
*One could argue that touch bar is a revolutionary element, but that is a very different discussion. As I see it, it is an attempt to incorporate an additional interaction dimension into the classical laptop. It kind of makes sense, but it doesn't change too much.