If each new satellite can put down more spot beams, you can cover more cells for longer. With the spectrum they have, they could put 8 beams on a cell with 100%

If each new satellite can put down more spot beams, you can cover more cells for longer. With the spectrum they have, they could put 8 beams on a cell with 100% duty cycle, which is probably around 3.2-4Gbps.