That's not stupid at all, it's unavoidable if you want to still have enough energy when you don't have peak production. Given how cheap solar is getting, it may even be more economical. And you always have the option to add storage later, when it becomes more economical (which it isn't yet).
It sounds like it's grid-tie only - so it just shuts down when the local grid is over-voltage. Ideally you'd want something that could run in an isolated mode, if only to supply power to something useful like an electric water heater.
Isolated DC-coupled solar is mostly done by DIY folks with inverters like Sol-Ark that can do AC or DC-coupling and can work when the grid is shutdown. Your solar constantly charges your batteries and powers your house as a microgrid. Any excess power COULD be sold back to the grid, but to avoid the added hassle of interconnection agreements, most just store it into a larger battery bank for rainy days. The goal here is to fully zero out your monthly power bill AND be self-sustaining.
Better than the stories of exploding substations being a Belgian plague that I heard from electric grid engineer few years ago