With this kind of setup you can stay connected to the grid. In the event that your solar and storage fail unexpectedly you can still pay for grid electricity.
You still pay service fees to maintain a grid connection. Not to mention that many people with these setups contribute excess generation back to the grid or allow their batteries to discharged by the grid during demand spikes.
A lot of those service fees were designed to scale with the amount of electricity used. If you've got a net metered bill chances are you haven't really been paying much for service fees.
I don't know anyone who bothers discharging their home batteries to the grid. The rates they get wouldn't cover the cost of the wear and tear to their batteries.
I am part of a plan that discharges my batteries to the grid. I don't initiate this happening, it is based on a pull from the grid upto 60 times per year when demand is high. Full disclosure that I received a rebate on my batteries for allowing this.
Also, I just checked my bills and my service fees are a flat amount independent of how much electricity I pull from the grid.
