I don't know where you heard that people were not buying the RAV because of the spare tire, and I don't know what Toyota's plans are, but I like it.
For one thing, it gives me a full size spare instead of the little black donut "space saver" spare I have on my Corolla.
For another thing, it is easier to get to than other spares I've had.
As far as it blocking vision. I had a worse time with the back seat head rests in my Corolla. They blocked a lot of my view until I removed them.
Of course this is just my opinion... I could be wrong.
