Blue origin will have the same, or cheaper costs by the time it matters. Not sure what your last comment means, but 3 of those 5 are slated to have far more capacity in the sky by 2022.
Read the study again. It's useable capacity. You cannot use the 20Gbps number SpaceX advertises.
Read the study again. It's useable capacity. You cannot use the 20Gbps number SpaceX advertises.