While I agree with you about the situation Nintendo is in and that they will eventually iron out the supply issues and all, the big problem that's really causing lots of the frustration lately in Japan with the switch situation as well as other recent launches, psvr most visibly, has been that a large amount of systems are going not to regular people who want these items but those just to put them on yahoo auctions and such. There's a well known issue of people being paid in line by scalpers just so they can get their hands on numerous ones just to scalp. And many have stated the yakuza are a part of it. There's also been issues with how these lotteries have been taking place with some stories showing some rather strange mistakes being made.
Many have suggested that Japanese stores and companies stop doing these lotteries and find a bettter way of handling it but so far there is no real good answer. And there will indeed be people that get fed up over it. Many did with psvr earlier this year, which is a shame for Sony as psvr is a very in demand product here and even now it's still hard to find and people are angry. The anger over that situation was quite large online then and now, and I expect it will happen to Nintendo too if this lasts well into the year. The one good thing however is that units are getting out there. But when you have to wait in line just for a lottery, it's just very frustrating for many people. Especially when they just released a sequel for it to one of the biggest gaming phenomenons in Japan this past decade. So many people want to play and most can't at all.