Disagree strongly. Reckon half of Western Sydney still would not know who/what GWS is.I say this with no experience of living in Sydney.
"Western Sydney" is definitely more identifiable from a location perspective, but "GWS" is distinct. Across all competitions, all sports, you know who GWS is. But whatever they're called, whether it's Western Sydney or GWS, I think that title should be more important in the marketing than the "Giants".
I agree that the uniforms are better now. I think a lesser focus on white is good. I love the Never Surrender colour scheme, but I still would've preferred a more traditional guernsey. The Never Surrender would've looked great with three really thin chevrons. I also think black and orange hoops would've looked good.
If you were from Parramatta (for example), and you were listening to the radio or watching the news, and you heard 'today Western Sydney beat Collingwood' your ears might prick up. If you hear 'GWS...', it means nothing. Nobody is identifies as being from GWS, or even Greater Western Sydney. Every time the words GWS are uttered, it is a missed opportunity to attract the attention of the supposed two million potential Giants who live in Western Sydney.
The other mistake was setting up in Blacktown. The games needs to work its way westward. It will be decades before they get any traction in places like Penrith or Blacktown.