> They have also summoned billionaire owner Elon Musk for questioning.

Good luck with that...

the thing is a lot of recent legal preceding surrounding X is about weather X fulfilled the legally required due diligence and if not what level of negligence we are speaking about

and the things about negligence which caused harm to humans (instead of e.g. just financial harm) is that

a) you can't opt out of responsibility, it doesn't matter what you put into your TOS or other contracts

b) executives which are found responsible for the negligent action of a company can be hold _personally_ liable

and independent of what X actually did Musk as highest level executive personal did

1) frequently did statements that imply gross negligence (to be clear that isn't necessary how X acted, which is the actual relevant part)

2) claimed that all major engineering decisions etc. are from him and no one else (because he love bragging about how good of an engineer he is)

This means summoning him for questioning is legally speaking a must have independent of weather you expect him to show up or not. And he probably should take it serious, even if that just means he also could send a different higher level executive from X instead.

I guess he could just never enter the EU ever again. Maybe he can buy Little St. James.