Powerful kicks

Other then Muy Thai round kicks, I don’t see any effective kickers anymore. I’m not talking about a “double looping flying thrust to buddha” kick,but with the larger gap between fighters as compared to boxing, you would think that a fast front kick to the stomach would be a very effective technique. Many of the MMA fighters who are just developing their stand-up game seem to be wide open when they leap in to try and score a punch. I’ve known many excellent fighters who could drop most people with a well timed front kick to the solar plexus.