Because very few people will know what you are talking about if you go up to a random person and ask them about Lada or BYD. Musk is an egomaniacal idiot that

Because very few people will know what you are talking about if you go up to a random person and ask them about Lada or BYD. Musk is an egomaniacal idiot that most of us dislike. There are countless valid reasons to dislike Tesla as a company and the cars they make. However, that shouldn't cause people to overthink things when their name is simply being used as shorthand as it clearly is in this instance.