Upgrading from Gen 1 base station to Pro base station

I have a Gen 1 base station that has a problem and needs to be replaced. Ring agreed to replace it with a Pro base station which is a nice upgrade. I came across [this support document](https://support.ring.com/hc/en-us/articles/4402107880084-Upgrading-or-replacing-your-Ring-Alarm-Base-Station) that says when you upgrade to a Pro base station you don't have to go through the nightmare of removing, resetting and re-adding every single sensor (YIKES!). But the person helping me said that this is only applicable to upgrading from a Gen 2 base station to Pro, and if I'm upgrading from Gen 1 then I have to reset everything and start from scratch. However, nothing in the support document makes this distinction. It says this can be followed when you "upgrade your Base Station from a Ring Alarm to the Ring Alarm Pro." Can anyone confirm whether or not the easier upgrade path applies to upgrading from a Gen 1 base station?