If you tap the icon to view your "queue", you'll see the next 100 songs that follow the one you're playing. That helps a little, but I also hope they fix this soon, like in the next software update.
In case you missed it, Kyle Connor did a comparison between the dual and quad motor trucks off-road. It's 10 months old so perhaps outdated. Most of what he says matches what folks here are saying. Here's a link to his dual-motor test.
Thanks for sharing your experience. A disabled vehicle on account of a bad heater is disconcerting. One would think that only the heater would get disabled. Let's hope that other non-critical electrical subsystems don't disable the vehicle when they fail. I take delivery on my R1T in 2 weeks...