Switch is a traditional console as traditionally consoles are ever-evolving pieces of hardware, just like their original inspirations of the arcades. New methods for control inputs have been the norm, thus the tradition.
What PlayStation and Xbox do, sticking to the same things over generations, that's following the path of PCs, not the path of traditional consoles. You look at the successful console makers of the past (Atari, Nintendo, Sega) and their consoles went through innovative changes each generation. That's the traditional console model.
What the article should be really asking then is if Nintendo should make a dumbed down PC. The answer is an obvious no, because sales data points towards success when Nintendo strays away from the path of PlayStation and Xbox.
I don't agree with that. The SNES was iterative. It was a more powerful, more advanced NES, with improved controller input. The N64 was the same, wih the addition of a true analog stick. The gamecube was a further enhancement of that concept. It's only with the Wii that Nintendo tried to break away from the mold. And it managed to win its bet. The Wii U was a conceptual mistake. It had the right ideas, but the execution was a disaster. And now we have the Switch, which is what the Wii U should have been in the first place. Among all of their home consoles, only the last 3 may align with your assessment that Nintendo differentiates itself from Sony and Miscrosoft's iterative methods.
But PlayStation and XBox also align with what you call "ever-evolving pieces of hardware". The PS4 allows for gaming experiences that weren't possible before it, like the PSVR. The Xbox 360 and XBox One also had Kinect which provided something unique when it comes to motion controls. Then you have to factor in the actual user experience allowed by those console's UI, which indeed appear as being PC-lite, but also more user-friendly then them, which is something that has always been an objective for home consoles. Point in case: the Famicon wasn't given such a name for no reason. For as long as consoles have existed, they've always been "dumbed down PCs". And Nintendo's consoles are no different. The question is why would you consider this to be a bad thing?
As I once told you in the past, I think you don't give enough credit where credit is due and are quick to unfairly dismiss Sony and MS.