Pedestrian Streets - Areas

I just noticed that the Mapquest rendering of Dublin is a bit unrecognizable with Grafton St. and Henry St. given the same weight as paths through Stephen’s Green:

http://mapq.st/qqEm2O

Should major pedestrian streets be defined as areas?

OpenStreetMap itself does better:
http://www.openstreetmap.org/?lat=53.34675&lon=-6.26129&zoom=16&layers=M

So maybe it’s a problem for cartography in Mapquest?

Eoghan