This isn't surprising. I've been suspecting that Starwood would follow Marriott's lead by selling points v. deeds.
I think the main reason that they are doing this is to skirt consumer protection laws that prohibit them from charging high season owners more MFs than low season owners, or OF owners more than IV owners, for obvious reasons. Wear and tear is the same whether you use a villa in October or June, whether it's IV or OV.
Since the economy tanked and they quit building new resorts, timeshare developers have been struggling to make a profit. According to the model, they were supposed to (and did!) make huge profits during the initial sales phase of their new resorts. Once that resort sold out, and they pocketed the premiums paid for people who wanted to get a "discounted" vacation in future years, the resort was to be passed over to the HOA, where it was to enter its "maintenance, non-profit" phase. (Did you know that Starwood HOAs are non-profit? Laughable but true, unless you truly believe that it costs $10k per month to maintain a 2 bdrm at WKORV, in which case I have some swamp land to sell you in Florida.)
Of course, that model blew up when the economy tanked. Since the developer had no new resorts to profit from, they had to turn to the only thing that they had control over, which was the HOAs. (How can they do this? Since they handpick who runs for the HOA, it's easy for them to rubber stamp anything put in front of their face, including hugely inflated contracts for housekeeping, landscaping, management services -- which with a little digging MAY reveal that they are actually Starwood owned subsidiaries... No matter who actually owns them, I can guarantee you that the HOAs are not acting in the interests of the OWNERS by accepting competitive bids or researching more cost effective alternatives. Their board meetings last maybe an hour, and there is no evidence that they do anything but approve what has been proposed to them.) Presumably, that has worked well for them...
Except for resorts with true "seasons." They learned that they can't realistically raise MFs higher than the going rental rate for the lowest season at any given resort. Why? Because low season owners would simply bail. I mean, would you pay $2500 a week in MFs for a 2 bdrm at SBP in early November when you could rent it outright (often from Starwood itself) for $1200 a week? No!
So what does a developer who has maxxed out its MFs at a resort do to profit, when they are legally prohibited from charging different MFs to seasonal and upgraded-view owners and they can't realistically raise them above low season rental rates? They institute a points system! Now they can charge x points for low season, x + y for mid-season, x + y + z for high season, not to mention extra points for view upgrades, and or "pool view" vs "parking lot" view. It's a creative way to squeeze more juice out of the lemon. Consumers are happy because they haven't paid the huge buy-in fee that deeded owners (who expect MFs to be stable) have paid, and the developer is happy because selling points is a lot easier than selling deeded weeks in silver season.