I hear you and don’t want to start an argument or go too far off topic, but DVC perks have changed over the years as I’m sure you know. I doubt they ever promised it as a “lifetime” benefit, otherwise it would be in your contract. Things have obviously changed a lot since then, and the list of non-hoppable pools has grown too.
SAB is our absolute favorite resort pool, which is why we almost always stay at BCV, despite owning at SSR. So if you really want access, staying there at seven months is often an option. The resorts aren’t all that different anyway IMO and Epcot feels closer.
SAB, even with its size, really can’t handle more than the Y&B crowds on a busy day. And now the cabanas will take up a little more room even if it is rather small.