Sakurai has a profound influence on how the fan base thinks about Smash, especially when it comes to character speculation. Most of the fan base base how they think about potential characters based on what he say and did, sometimes as the gospel. If there's any doubt on this mentality, look at how the fan base perceives Ridley. Before his revelation as a boss in Pyrosphere and his
follow-up explanation, most people not only expected Ridley (at least before the Pyrosphere revelation in April 2014 Smash Direct) but laughed at the thought of anyone arguing "too big!". Now that Sakurai has affirmed he can't (or at least doesn't think he can) make Ridley work with stage hazard Ridley as what he considers to be evidence, we're under an inverse situation with how people perceive Ridley. That's not to say that his decision or his explanation on why Ridley is not playable is wrong (although I will admit I will always hate pinata Ridley and refuse to play on non-Omega Pyrosphere) but Sakurai's influence within Smash is a phenomenon.
Smash fans have a tendency to overanalyze everything which is why the autism over silhouette even occurred despite everyone in it being obvious veterans. The same goes for painstakingly tearing apart every word to twist into what they think (often times what they want to hear) Sakurai thinks when deciding on characters (especially if it's their favorites). But at the end of the day, the character decision boils down to one thing, what he likes and if he can get them. For the most part, nothing will stop Sakurai's preferred character from getting into at least the planning stage.
When considering we have a grand total of six Fire Emblem characters, three Kid Icarus characters yet only two DK characters and little Kirby contents outside of Sakurai-directed games, he's arguably become more selfish than the past three games when it comes to character choices. At the same time, I'd argue he's earned the right to do so.
So it's still pointless to throw a raging bitch fit that your husbando or waifu didn't make it in since everyone is still buying the game anyway. If said "bad" choices are so egregious that you refuse to spend money on it, do what Diddy Kong (the Smashboards user) did and blow your money on hookers.