What do you plan on doing for the rest of 2016?
Since no third party games were announced and zelda is coming in 2017, what is there left for 2016? At least ps4 players, xbox one players, and pc players have many third party games that will be padding out the year (along with some first party games like the last gaurdian). How can one game that won't come out this year be considered a successful E3 for Nintendo when nothing else was shown for the wii u for this year?
So you don't want to count any games not shown at this E3?
So was Sony's 2015 confrence a failure? how many of the games shown there released in 2015? Not very many.
Other retail games are being released for the wii u. There also some excellent looking indie titles coming out on Wii U in 2016.
Now if you mean does E3 suck if you are a Wii U owner and only want Big, AAA games, shown at E3, then sure.
If Sony only showed off first party games last year, they would have been destroyed. As you say, they didn't have much that came out last year first party wise (and yes, I would have thought their E3 would have been a joke)
But their E3 (again, focusing on stuff shown at E3), showed off a good amount of third party content.
Also games don't have to be triple AAA to be good, but it's nice to have options