That's not enough to get a company to change its mind, but at some point it's time to stop playing nice. Nintendo apparently did this with Bionic Commando, if you remember that misguided attempt at a reboot. The story goes that Nintendo refused to allow Capcom to put out Bionic Commando on the virtual console because the new game and Rearmed where not coming out on Nintendo systems. Similarly, if the new MGS isn't on Wii U, then why should Nintendo money and time promoting Snake in Super Smash Bros?
Yeah I remember the Bionic Commando situation.
I feel like having a character in Smash Bros should be considered a huge honor since not just any third party character can be in the game.
Kojima is constantly shafting Nintendo fans over and over on new games, and giving us only scraps (enhanced ports like Twin Snakes or MGS3D). It is embarrassing.