Many people get this confused- Points and VIB/VIB rouge status are two totally different things. The VIB status is based on the amount of money you spend in a calender year and if you don't continue to spend the appropriately needed $$ limit for that calender year, you will be dropped to a lower tier.
Points, on the other hand, are earned on purchases and never expire and have no direct connection to your VIB status.. You can have 2000 points and still be a BI, like I was, because I had saved points for quite a few years.