I find the pinning system to be fair enough this year but I can see how it would ruin the game when you perfect the timing.
In past games, where the pin mechanic was even easier, I'd set ground rules for myself to make the game more challenging. Mainly, any time I was pinned after a finisher, I'd close my eyes until I heard the 2-count, and it made it relatively difficult to lock in and kick out once I opened them.