Yeah, no. "Dal" got me "Dallas (DAL)" so, given that every other city name gives you every airport in that city, we must be done with Dallas. If you have to type all of Dallas to get Dallas/Fort Worth, then don't accept "Dal" for DAL.
If you are going to accept Dal for Dallas, can it also be accepted for the other Dallas airport as well? I almost didn't get it cause I you accepted it for both Dallas airports?
Also, random choices of when to allow 3-letter codes is aggravating. Getting HOU but not Houston, and DAL but not Dallas, sucks.