It would meet some customers’ needs because
multiple people could use 1G of service at a time. I think
it is interesting to distinguish “>1G CPE” from “true 10G
CPE” and I suspect many / most customers are looking for the
former.
Large upstream capacity has always been about aggregation of the
downstream.
The 100Gbps or 400Gbps backbones we deploy, as operators, are not
symmetrical with what our customers buy.