High end spec renters know all of the workarounds. They know all of the loopholes. Some likely have tools which boost their success above and beyond any run-of-the-mill member. 5000 points in the hands of a spec renter are being targeted at things like AKV Value and BWV standard studios.
Take those same 5000 points out of the hands of the spec renter, and they're not being used entirely for AKV Value and BWV Standard. Average Joe hoping to book those rooms for their *vacation* immediately has a greater chance for success.
This isn't about getting to a place where December BWV Standard View studios are still available 9 months out. It's about the idea that right now, (hypothetically) there may be a 5% chance of booking BWV Standard in early December, in part because a highly educated, manipulative group is grabbing the rest of the availability. Without those spec rentals, perhaps that success rate rises to 10% or 15% or 20%. In my mind, that's a win.
There is also evidence suggesting that some spec renters are holding rooms right up to 31 days before arrival, at which point they dump the reservation and use the points for something else. Problem is that room cancelled 31 days out is almost useless to
DVC members who tend to be longer-term planners. The room could even get rolled over to CRO as breakage. (Some rooms may even get held longer than that, because people have learned to play games with points that get put in the Holding account.)