The article is not "wrong" (it is actually quite wrong on a number of specific points, but I'll humor the author here) that Nintendo's messaging over the nitty gritty details when it comes to the OS and account system leaves something to be desired.
Where it is wrong, completely so even, is that these are the mistakes that tanked the Wii U.
The problems with Wii U were, roughly in order of severity.
- Confusing name, what is a Wii U and how does it differ from the Wii
- Vision not clearly communicated, what is asymmetry and why would we want it
- Bad tooling for difficult architecture, 3rd party devs felt locked out of Nintendo secret sauce
- Nonexistent advertising
- Failure of Nintendo to grow their userbase preferences; coming off the Wii which was mostly fitness and party games, Nintendo released in the first year: a party game and a 2D platformer (november), a party game (january), a 2D platformer (June), a party game (June), an RTS (July), an unadvertised messy brawler (August), a remaster (October), party game (November) and fitness game (November). The market for the kind of games AAA devs make was completely absent. By the time Kart and Splatoon came out it was too late
- Obnoxious licensing and QA
- Price that stayed high
- A gadget that was old hat by the time it released
- A fisherprice controller
- Lack of robust friend system and partychat
[*]Problems with storage and digital content
I'll tell you what nobody in the history of the mass market gave a shit about: the way the OS looked. If the writer of the article seriously thinks that's the major problem of the Wii U he's fucking delusional.
Now these other points, they're a fair game to see how well or poor the Switch stacks up to this. You'll find that the situation between Wii U and Switch is not at all the same, even though there is still room for improvement.