Where does that say to ground anything? The FPN clearly states that no ground electrode is required, and the word ground does not appear in the quoted text.

680.26a Fpn: The 8 Awg Or Larger Solid Copper Bonding Conductor Shall Not Be Required To Be Extended Or Attached To Any Remote Panelboard, Service Equipment, Or Any Electrode.
There is no requirement in the 2005 NEC for grounding anything to do with a pool except as is normal for all electrical wiring. 680.26 establishes the requirement for an equipotential bonding grid, not a ground system. Although the FPN is not enforceable, it indicates the intent of the code, and a proposal changing that text from an FPN to part of the code has been accepted by the TCC for inclusion in the 2008 NEC (proposal 17-114a), while a numerous proposals (most if not all by the same person) requiring the bond wire be connected to a ground rod have been rejected (17-116).