Seems like the fix has made the pedal more resistant and thus more likely to spring back, and throttle response is better too.
At the same time, had front brakes and fluid changed, front end alignment, small dimple removed from front bumper, cabin air filter changed, condenser cleaned out of mold and fungus, all for about $600 in one day.
Seems this fix is not causing a lot of trouble for many of us. It gave me a chance to get to know Toyota a bit better as well-- at least the local dealership who just opened a brand new facility even closer to my home than the last one. Arlington Toyota is truly an awesome dealership from both facilities and customer service point of view.