The HRL's suits are backward in tech, but are "very reliable and robust", according to Gundam 00's site. They have much higher defence than other suits and can also mount much heavier weaponry. Nanomachines are something that's not impossible for us in the future. Issues similar to this may occur, where humans utilize nanomachines for military purposes, or just raising quality of life in general by promoting health, only to be hijacked inside. We haven't been introduced to any more CB members yet. If this is all their members, I can't really imagine them ever accomplishing the creation of the Gundams, even if they had the financial backing or expertise. I wonder if there'll be a repair crew around if one of the gundams ever got damaged enough.

edit: I forgot what they said they did to Soma's suit, but though it looks inferior to Graham's Flag, I do remember it being something good.