Now that the maps are up, I've looked at your preferred route. As you said, everything looks fine with the map.
My money is on the routing server not agreeing that 285 / Alameda Ave is a valid cross-town route. I think you'd have to upgrade it to a Major Highway in order to overcome that barrier, and I believe a 5 lane road (2 in each direction plus a turn lane) with traffic signals and bus stops is already charitably considered a Minor Highway in an urban area. Depending on other factors in your area, perhaps your area managers would agree to upgrade it to Major Highway. I'm all for tuning the map to fit the routing server, as you can see.
Others, however, believe the routing server needs to better understand the map. In that event, e-mailing support is the correct route. Essentially I think you're asking them to get the routing server to consider minor highways for the 25-35 mile range -- I think you've demonstrated that because the Colfax exit is near that 25 mile limit (depending on where your actual destination is of course). I don't know how well they would take it if you were that specific, however.
Perhaps pointing them at this thread would tell them what they need to know.