Some of their older platforms had some pretty questionable UX decisions, but with the Switch I feel like they finally nailed it. It's simple and effective.
Even RetroArch copied the Switch UI, which indicates that at least the enthusiast community feels similarly.
This article is about Nintendo of America, which is just a marketing and localisation company. Unless the Switch has a different UX in Japan the UX has nothing to do with Nintendo of America.
Nintendo's UIs are annoyingly slow but they're better than the average Japanese website, which is a lot worse than the IRS. They seem to enjoy online stores where the checkout process is 10 clicks instead of one.
Even RetroArch copied the Switch UI, which indicates that at least the enthusiast community feels similarly.