While I don't want to hijack this thread about the front-rack compatibility, this update from Giant seems worth sharing here. It kind of leaves me SOL. Seems like the front-racks are only properly compatible with steel fork versions of this bike.
Sucks for me, because I bought this with the intention of turning it into a city/grocery bike, with front and rear racks. After putting some time, effort, and money into customising it, it looks like I may be back to the drawing board.