Well if you look at it historically, Nintendo have had an issue since the SNES, as when Sony entered the console space Nintendo's console sales nosedived. And the release of the Gamecube showed Nintendo two things, one, they could simple not compete in the core power race, and two, it was not even a viable space for them as there were now two very strong competitors in Sony and Microsoft, but the problem was not so much Nintendo as competition.
Nintendo's hand was pretty much forced with the Wii and DS, they developed two consoles that did not opt for power, they were chasing a wider audience with two pieces of emerging technology, touch and motion controls, and of course hit the age old "lightning in a bottle" generation and did very well out of it. Problem is they simply did not understand the mass majority of these customers, not their fault totally, as they had never sold anything to them before. And as I said in a previous post, most of those customers had simply moved on to other things. The Wii U was a disaster, Nintendo did not promote the machine at all, they just expected Wii owners to rush out and upgrade to the new console. The 3DS stumbled out of the gate, and needed a price reduction, and the release of Mario 3D world and Mario Kart 7. to gain some traction, but fell miles short of the DS milestone.
As I said the Switch is a totally different kettle of fish, the console has been in demand ever since launch, Nintendo marketed the thing right from the start, and had created a very strong brand with the Switch, there is no sharp drop off in sales like with the Wii, and the console is still selling very well, and more importantly, still shifting lots of software, which is amazing so late into it's lifecycle. The DS sold 154 million consoles and 948 million pieces of software, the Switch has sold 132 million consoles and 1.3 billion pieces of software up to now. Every way you look at the Switch's figures, and it's continuing sales and success, points to it's successor also being a hit, and that's before we get to any price being touted at the moment, as pure speculation.
So when you and others state it's an historic problem for Nintendo, there is little or no context or nuance to that statement, as the current Switch scenario is totally different to those previous situations. And I think is based on your own personal feelings, and the core minority's wants and expectations of what Nintendo should do next. I also feel there is an element that would like to seen Nintendo struggle with their next console, as they do not like the fact Nintendo have done so well, with what they see as a underpowered overpriced console.