Earlier quoted context omitted.
Having to spend $15B as the cost for making an impulsive decision (when you can afford it) is a first world problem.
Tesla and SpaceX success is depending on the public opinion of Musk. If he ends up paying 15 billion (or whatever the number is) over a botched take over, one that had a negative impact on Tesla shares, this opinion might just change. In which case Teslas future preception as a tech company might be at risk.
No it does not, SpaceX results speak for themselves, they have no competition. Same with Tesla, just check their vehicles sold charts.