No this is NOT correct. I had it confirmed by two different owner care reps and the IT triage person I spoke with about my account issues.
upgrades in the new system are handed out in two priorities. VIP status (plat, gold, silver) and then booking priority (first in, first up). So if a silver and a plat book at the same time Plat gets the upgrade. If silver books two months ahead of plat, plat still wins. NOW the question is, if they both book inside 30 days and an upgrade becomes available is vip status included in the ranking? Based on what I was told about how upgrades were handed out (and told the above) I would think VIP status is still in the mix.
NOW having said all of this, I think it is important for people to call in and ask and then report back. They are making changes on a daily basis and this question has several layers which might not have been addressed in the answers I've been provided.