They were old, but in denial. Remember the "we're not to old for this ****" scene, and the final fight they had instead of walking away? Maybe they're retired in this one. As long as they don't kill anyone or ruin the LW4 happy ending, I don't mind if they make another one, but I really don't see how they can be useful. They'll probably be teaming up with a young team....meh.
I know!! It was so weird and out of character for him to be just another jobber. He went from crazy hair super martial artist with a death wish to older normal guy. It wasn't even a big deal the fact that he lost a fight against another martial artist. That was my only issue with the film.