I also noticed that the configuration options for theses bulbs are limited in ST. I believe the bulbs that shipped w the BF kit are white label (rebranded) so they are just running a stock manufacturer firmware. According to the Product Roadmap, the more advanced firmware features are being reserved for Phase 2 which will be a new device based on the 700 series chipset.
That being said, I’m also hoping that additional features can be exposed by an updated device handler or firmware. If these natively supported a default state vs the current behavior of returning to the previous state at power on, that would make them far more useful in my setup.