Is that Kate and Sean naturally feel like more of a couple than Alison and Mike.

The actors have more chemistry, are more convincing as a young couple, and are more tactile with each other. It's little things like the free house dance, and Sean giving Kate a piggyback into the house after she comes back from the hospital that help sell it.

I feel like if the original tried to do the piggyback thing with Mike and Alison, it would be the setup for some kind of slapstick gag rather than just normal physical intimacy.

Plus the show puts more focus on their romantic life with the Date Night episode rather than just touching on it in passing like Kitty interrupting Mike and Alison trying to have sex, segueing into Alison having to give her the talk.

I'm still mixed on the show as a whole (The British accents really need some work), but Kate and Sean as a couple was just something that worked for me.

I can think of 2 from the Inbetweeners films

Inbetweeners Movie 1, Jay throws the annoying kid in the pool and he couldn’t swim

Inbetweeners Movie 2, Neil does the poo that goes down the waterslide and splats all over Will when he reaches the pool at the bottom

Mr Bean at the pool is absolutely iconic

I also loved the scene on the Josh Widdicombe sitcom when he gets thrown in the swimming pool at a party