Re: Why?
I don't see any reason why there has to be a single choice of ratios. If I could trade a bit of download capacity for extra upload bandwidth, I'd be tempted.
The current situation is like expecting everybody to drive an 850cc Mini. It could do a lot, more than you think, but sometimes I needed a Land Rover.
When there is only one product, maybe with a bit of badge engineering, do you really have a market?