Even in portable mode, it's still roughly as powerful as Wii U, so it's not like it's terrible and can't produce some nice visuals. Yes, it could be better, and it probably should be better, but it's not terrible. And more importantly, it's probably still going to be used mostly as a home console anyway, so it being a portable hardware-wise doesn't really matter too much. If they released it as purely a home console with no portability, with the same hardware, no one would be complaining about it being a tablet. At most, there would be complaints about it being underpowered but there wouldn't be ridiculous tablet comparisons.