Someone on Rangerboard claims to have a friend that worked as a production assistant on Samurai. Aprently word on the set was that they wanted to dumb the show down for 6-10 year olds. The actors we're asked to act like they we're talking to 5 year olds.
http://www.rangerboard.com/showthread.php?t=145554
This sounds pretty plausible to me. Based on how Samurai had been written. It sure would explain alot about why the Rangers act like 5 year olds.