@m5stack I'd gladly consult with your engineering team in my free time, to at least try to give a customer/consumer oriented viewpoint. I believe that a company works best if they listen to their customers and work together to get the best possible product out to the market.
Also, in the meantime, could you please confirm/answer the so far unanswered question from the thread linked above? About the IT8951E sources, if you'd be able to publish them, and if it's possible to flash the chip through the existing SPI interface. I'm pretty sure the community would be able to find the reason why it's sucking so much power unnecessarily, and we could possibly even fix it, so that future batches can ship with better performing components.