Garages that have 20% empty spaces pretty much all the time ,give me the confidence to rely on them. I plan around it being available (and am happy to pay for it). By contrast if it's full 20% of the time then that feeds me with doubt.
I say "done well" because in many cases it's using basement floors and other hidden spaces. Sure the building costs more, but that value is returned in parking fees, and also the improved "dependabilty" of the building.
Of course the sprawling open land approach is terrible, lacks imagination, is ugly, impractical in bad weather, and likely what you thought of reading the headline. So on that I agree.
Parking, like any architectural feature can be done well, or badly.