Just because Sakurai gave tourney players their own online mode, doesn't mean he's suddenly catering to them. Hell this mode is just a simple flat surface to each stage with the normal background still there and items disabled. It was probably made by two guys in a week because of how simple it was to do. Yes he gave them something to be happy about, but because of how simple it is to make such a mode, I wouldn't use that as an example he's going to go out of his way to make them 100% satisfied.
It goes like this, you remove Falco, it's easier for his players to play as Fox since both characters are fast, have similar weights and share most of their attacks. You remove Wolf, his players have no one to go to since he's much slower, heavier and 95% of his attacks work completely different. If it comes down to Sakurai removing a character that will anger a few thousand tournament player versus a character that will anger a few million normal players, Falco is getting the axe first.
Just because some people are still angry Wolf was the final character in Brawl instead of someone else they wanted, doesn't suddenly means he's getting cut to make up for their butthurt they should have gotten over 6 years ago.