I hate this idea that the amazing games formerly on the Wii U, that Nintendo and other companies devoted time and money too and most likely never made it back due to the failure of said system, should not port them, or in Nintendo's case port with additional content.
One, it gives more to the Switch's library of games, making for a more robust variety of games on it.
Two, it allows new players to play them that have skipped the prior system.
Three, it makes money for said companies.
Last, it is not one bit different from the Xbox 360 - Xbox one or the PS3 - PS4 transition, count the first year Definitive Editions on those two systems.
Why hate systems that bring you great games?
PSN: Aceburg0413
XBOX Live: Sheep of Doom13
Nintendo: SheepofDoom13
3DS FC: 3222 - 5562 - 9867