The soldering part does not matter if it's going to be used by someone that already assembly their drones by themselves. What does matter there is weight, size and prize,
Which models has NOR/eMMC storage?
When I saw the OAK-D lite I really hoped that that one could run atleast some custom code.
A complete flight controller firmware, Betaflight and iNav for example, is (so far) smaller than 512 Kbyte and the controllers today use to have F4, F7 CPUs. There are models with H7 CPUs with room for larger firmwares. My thought was if a small program that get inputs from the AI in the OAK-D and transform them to virtual operator inputs to the FC to change the heading. IE let the OAK-D do the image processing and see where it wan't to go and let the FC do what it's best at, controlling the drone based on the operators inputs.
I don't know it it's possible to do this but I guess that there could be a new level of racing by for example making the fastest AI racer with just on board electronics and no external but again. I don't know if this is yet possible.