Consulate in Guangzhou

This article in the Shanghai Daily that says the US Consulate in Guanghzou just opened their new district in the TianHe District, and that "the capability of the new office to handle immigration visa applicants would increase 50 percent." I'm confused - they moved in August, here is the press release from that on the consulate's web site This page shows that the wait time for an appt is now four weeks. But I think it might be more than that. If you wait a month for Travel Approval, and then your agency can get a consulate appt in 4 weeks, then you would leave two weeks after TA (because you have to be there two weeks before your appt) or six weeks after referral. But I'm not seeing that happen a lot, so I'm not so sure that the 4 weeks is all that accurate. So, I hope that this means the US Consulate can shorten the wait to travel, but I'm really confused about the discrepancy. Anyone out there with more info about this?