The founders have moved hbars to other network accounts in amounts inconsistent with their sales plan. Does that mean they are not complying with their sales limitations?

No. The founders have always complied with the limitations in their sales plan. They may move hbars from their accounts 0.0.54795 through 0.0.54990 and 0.0.1 to a third party; however, such transfers are not necessarily sales. The transferred hbars may later be sold at the direction of the founders and in compliance with the sales plan’s limitations.