Wait, the car doesn't tell you if the battery is overheating? That doesn't happen with Li-ion batteries? I heard it does in cars and airplanes and laptops...
https://en.wikipedia.org/wiki/Boeing_787_Dreamliner_battery_...
https://en.wikipedia.org/wiki/Boeing_787_Dreamliner_battery_...
Having a coolant temperature gauge in front of you could show you a trending problem, before the car announces to you that it is shutting down as you attempt to merge into 75 MPH traffic.
The Tesla club comment at the top of your link is about a Roadster, not a Model 3.