Cutting the repair needs so drasitcally means one person can maintain 6x10^24 bases scattered throughout Sirius with no difficulties. And I certainly wouldn't like to see 20+ PoBs per system.
Note that my proposal leaves the siege drain under normal mechanics (by way of a different commodity) - one person may be able to prop up a bunch of bases, but they'll fall easily because he won't have time to provide repair materials to all of them, and building a shield generator on each will take a lot of effort for a single person too.
