John,
That's how come I felt a little bit better about this install. GFI breakers will interrupt all the power to the unit in the case of a G-fault, but the fact still is there.
NOT BONDED to the rest of the pool equipment.
If one installs a local GFI rather than feeding it with a GFI C/B in a situation (this one's a special TURKEY) like this, you still have non-GFI protected conductors which can remain active in the location.
You're only protecting the load side, while the line side of the GFI can still just boogie on up 'til the breaker trips.