Maybe, just maybe this could have worked before the era of ISP data caps, but now there is no way.
For the sake of argument, lets assume you're using the minimum requirement of 12Mb/s. Lets also assume you're on the high end of the average american household ISP data cap
at around 300GB/month. This means you're getting 0.9132Mb/s
of sustained usage rate all month long to fit beneath your data cap.
If you take that 300GB cap and divide it out at a rate of 12Mb/s, that means you can use their service for 2 days 7 hours 33 minutes and 20 seconds
of solid gameplay. This also assumes you have zero other internet traffic the entire month and the measurements being used are 100% accurate.
If you take the lower average cap at 150 GB per month, and 1080p service plan that changes reduces your usage amount down to 6 hours and 40 minutes
. I would hope that their service will default to the lowest setting possible (unlike most video streaming services), or many people will suddenly find themselves over their caps with a hefty bill.