A big part of promoting mixed martial arts is giving fans a reason to care about the fighters on the screen. They should have their favorites that they're rooting for, because if they don't they're very unlikely to tune in in large numbers just to see good technique. They need to care, and in order to care they need to know who fighters are. Since Strikeforce doesn't really have any vehicle to promote fighters outside of the cage, allowing for spectacular entrances is the next best thing. When BJ Penn's music hits, you know who it is. It's a spectacular extension of his persona. Strikeforce has nothing like it.
This brings us to King Mo Lawal. It truly boggles the mind that his entrance wasn't shown on television, considering the fact that it was the only somewhat special entrance of the night. Was Showtime embarrassed by it? Are they averse to star creation? The entrance wasn't even anything that special compared to the kinds of entrances stars like Randy Couture, Forrest Griffin, and Georges St. Pierre have, but it was still worth showing.
Even the "big" entrances at Strikeforce aren't what they should be. I embedded a Youtube video of Fedor Emelianenko's Strikeforce entrance that was omitted from the CBS broadcast. I'd consider this the biggest ovation I've ever seen for a fighter at Strikeforce, but it's still nowhere near the spectacle that it should be for a guy like Fedor.
Entrances might not seem important, but they matter. The details all matter. Your average fan is far more likely to bring up King Mo's dancing entrance around the water cooler than his knockout of Mike Whitehead.