I think this is also key to why people are getting fed up. For months, we have had insiders saying/implying that there is a treasure trove of news and rumors that Nintendo is sitting on and will have to reveal any minute otherwise the dam will burst, and then........nothing. Like the VGAs where Nintendo tweeted about it, and in the end it was for 3 Switch games and none of them first party. And Nintendo hinting at things but then leaving them at that.
Coupled with their insanely tight lips concerning character 5, how everything around it just felt like something was off (the long delay, skipping a VGA reveal, the livestream being first, releasing 2 weeks later despite looking complete, the Fatmitsu article implying Sakurai was working on someone else, a repeat of Smash 4's DLC that did not go over well), and selling the second pass but without any content known in it.
People are getting annoyed at all this fantastic news hinting and then Nintendo dragging their feet.