Is the writing worse in SE 6, or is it just me?

I really liked this show in SE 1-4, maybe 5 too, but SE 6 seems off to me. The conversations between the Miyagi Do students is SE 6, part 2 are really bad at the tournament when they start losing. The dialog seemed like...dumbed down. Like maybe for a younger audience? But then there's curse words all over the place. Makes no sense. Even ralpgh is saying "shit!"
Ralph Macchio saying "this isn't over", after being kidnapped is totally unbelievable. He would just be trying to escape that dog pound castle at any cost! Not talking about ancient beef with Reese.
(and yes, I saw the tattoo)
Next, the tournament games are ridiculous. I fought in under 18 Karate tournaments when I was a kid. There's no 20 foot high stages where you kick other kids off. There's no weapons of any kind! There's so many rules so as to NOT hurt the other kids. The Miyagi Do kids fall 20 feet down and nobody breaks a single bone??? BS!
Also, up until SE 5, I was pretty wrong about everything that I THOUGHT was gonna happen. I wasn't able to predict almost anything. Then that kidnapping thing happened! That was an OBVIOUS Kreese baiting maneuver, obviously. You could see it coming from a mile away!
Am I just getting too old for this show, or has the gimmick just run it's coarse? Or are they running out of ideas? Or did the writers not expect the show to last this long, so now they are just desperately trying to stretch it out as much as possible?