If we were talking about a regular gas car - many families have cars worth $60k and we'd still be asking serious questions if, by inaction, we ended up with a $24k repair bill.
R < B and R (is proportional to) B
The pattern being that sometimes things which are expensive to buy are also expensive to repair. In a gas-powered car, the engine+transmission is probably the most expensive component to brick and replace. In an electric car, it seems to be the battery system.
Neglected maintenance on a $500k house can easily create situations requiring $100k in repairs or liability.
Even if you didn't change the engine and transmission oil for 18 months that wouldn't happen. I bet it wouldn't happen if you didn't change it for 24 months.
Compare and contrast with not plugging in a car for < 4 weeks.
If you buy and wear a $20k watch, and you irresponsibly destroy it or lose it, it'll probably cost you $20k to replace it. And the obvious lesson for people considering buying $20k watches is you shouldn't buy one if you couldn't afford to lose it or pay to replace it. "If you have to ask the price, you can't afford it."