If you didn't plop the nosewheel down positively thus unlocking it quickly you could find yourself taking an unplanned cross-country excursion, a glitch readily circumvented by correct technique.
Good point. You are particularly vulnerable if you are 4-up (aft CofG) and make a really smooth landing. If you find yourself without sufficient directional control, after the nosewheel has touched down, simply hit the brakes hard so that the nose bounces down. That will release the nosewheel from the lock.
Oh, and I found yet another small disadvantage vs. the PA28: The main tank cannot be dipped (*) so you have to rely on the fuel gauge to know what's in there. The saddle tanks could possibly be dipped but I've never seen a dipstick calibrated for those.
(*) I have heard once that there was some sort of contraption that supposedly allows you to dip the center tank, but I have never seen it.