Originally Spider-Man was not announced as part of Marvel Now. Then of course we got the mysterious "Superior" teaser and thus the rest is history. Daredevil will be rebranded with the Marvel Now label as of next issue I believe but nothing is changing with that book.
Superior Spider-Man #1 is a continuation of a current story line, the "jumping on" point being that there is now a "new" character in the role of Spider-Man and old fans and new fans alike can follow Otto's journey of redemption (Slott used those words in a recent interview), but it's not a brand new story or something like that.
Fans can start reading fresh if they so choose, or if they go back and read the trades that lead up to Superior's story. I don't see what the big deal is here. I don't recall Wacker, AA, or Slott ever saying that Superior was meant to be a "Jumping on point" those are kind of what the "Point One" issues are supposed to be for anyway.