They just need that to get them an early bump, get the momentum going, then the key will be to win some games and maintain fan interest. They've executed an impressive, cunning plan so far: trot Jay-Z out to blind the low-income black folk into passively accepting the eventually deleterious effects of establishing the arena in Brooklyn, thus rendering protesting city council members impotent in the face of a massive real estate overhaul; land free agents with star-power both to build a winning product and also to create a buzz; attract people to games for more reasons than just basketball (Jay-Z will help with this, but so will the revamping of that area, especially given the sorts of people moving into and living in Brooklyn already). MSG sold out for years and years when the Knicks were competitive and when they were doodoo.
The games became an event unto themselves, and that's what will happen in Brooklyn eventually. This ownership seems really savvy is a part-Mr. Burns, part-Machiavelli way.
Trust me, I gives a fukk about Brooklyn or this team, I'm just calling it as I've observed. Could be wrong, who knows.