The headline is click bait. I would only judge the launch as "not gone well" when the system fails to sell.
Addressing a couple of the points they made in the article:
The announced price is more than people expected, but day 1 buyers are probably die hard fans and influencers, who would buy it anyway, at double the price. The real test is going to be the holidays and how the price looks side by side with rivals. Based on the news from Microsoft, the Nintendo prices will be in line with the competition. Also, if price does cause issues, Nintendo may get a "free" price drop in the US when Trump drops tariffs (consumers pay less but Nintendo maintains their margins).
Having retailer pre-order systems fail under the Switch 2 load is not Nintendo's fault. If anything, it shows that the system will sell well initially. Also, they are not losing sales if consumers get a website crash instead of "sold out".