Short answer - yes and yes. At VDH, those 7 rooms are split into two separate booking categories. 6 GV, 1 HA GV. For instance, say the 6 regular rooms are booked, and the HC room is available - if you try to book a GV, the site will show that none are available. You can specifically look for the HC GV and it'll let you book that, but it won't show that room unless you specifically ask for it. Bottomline, at VDH you can't be assigned a HC room without knowing about it beforehand.