We'll never know. Was it because of EU future demand? Battery Supply? A leak?This seems odd. There must be something more to it.
I suspect Elon courts many countries so nobody can read the demand signals (long growth/timing). This puts each country in a feverish race to be next in line, giving Tesla maximum negotiating leverage. And why wouldn't they fight to have jobs in the future?
New countries should have to cough up their own battery supply, then go by location, taxes, and talent.