Not true. A helicopter can't be moving horizontally when it lands. A flying car with wheels could potentially be moving at 70+ MPH horizontally when it lands.
1) Under what situation would such a maneuver be necessary, or even advantageous, and
2) Given the relative difficulty if making a "flying car" in the first place, it seems the last thing you'd want to do is add more weight and complexity with a second drivetrain (Indeed this has so far been a major failing in flying car concepts), and
3) Landing at 70+MPH is anything but safe, which is why it's typically only done on access-controlled runways under the supervision of air traffic controllers and ground crews.
Flying cars to not address and real problem. People are fixated on them for the same reason they're fixated on "hover boards" and personal jet packs - it's a cool fantasy concept that's been romanticized in film and TV, but has absolutely zero practicality or advantage outside of fiction.
You want a personal flying vehicle? They're called "ultralight aircraft" and you don't even need a license to fly them in most cases.