I asked the manufacturer about our drinkware questions, and got the following response, with permission to share:
"Alcoholic drink isn't an issue for the drinkware. We took the cautions stance to avoid misconceptions we are promoting liquor paired with cannabis. But usage wise, I wouldn't be able to tell if someone used alcohol in their drinkware, so users can decide to do as they please. As long as pure alcohol isn't sitting stored overnight, it's fine.
If anyone succeeds in building condensation, nothing to bother at all. USB and lights are IP rated to protect internals. Moisture from condensations can only exist on the externals in very prolonged use with ice in drinkware and not activating the oven at all. We've tested all these scenarios. Nothing to bother about so far.
For anyone wanting hot drinks right now, we recommend they should get the small version... Less volume, less hot mass."
Also, he acknowledged there are a lot of possibilities for the space the cup takes up. They will do more, and are open to collaborating with people with ideas.