Interesting, I had not heard that> I installed a couple after the 55g leaked and dripped into the wall outlet

On the bright side my wife was home and flipped that breaker, ran a big contractor type ext cord and plugged the power bars in from across the room

The leaky tank prompted moving the 55 into the new and waiting 75 which was set up in another spot that puts the outlets on either side of the tank. So far none of the phantom trip offs you here about.
FWIW a properly installed GFCI will work on any other outlet that is wired in the circuit with it. My outlets are actually on 2 seperate circuits, the one on tank left is last one on that particular circuit, the one on tank right is the first of three. The hard part was making sure that the hot wire to the follower outlets went to the right lug on the GFCI, so as to kill power to the follower outlets if the GFCI trip.
It worked out well since sepreate circuits allow me to divide up the accesories, i.e. a heater and a few pheads on each so that if one trips, I dont have a complete tank shut down
I dont have any experience with the power bar type GFCI, it seemed they were more prone to phantom trip offs than a correctly installed outlet, so I chose that route, but assuming the outlet you plug into is properly grounded it would probably be better than no protection at all