Do you think Nintendo is screwing people who would buy Switch and Nintendo would launch those ported Wii U games? remember those are 2-x years-old games... so why would re-experience a recently made game?
it is up to the fans what to do with it. I'm a proud owner of Wii U and I'm fine with not getting a ton of new games with it. I wasn't a buyer of a ton of games anyway, I'm more of a gamer with a selected few (recently a ton) of games. but in the NES/Famicom, I would rarely get a lot of new games, mostly swap with my classmate but I only have maybe less than 20 games. People who are bitter about it, doesn't seem to understand the business point of view. I would just say, if you are tempted to buy a Nintendo console at the moment, try to wait for Switch since it is announced. unless you have a ton of money and wanted to buy both... :)