Cults have strict rules about who speaks for the cult. They're closed environments where the gospel can only be spread by a few wise men. You and the OP sound more like cult members to me.
What does it matter if a few people didn't understand him? (I understood him just fine; I thought the interviewer was terrible in the questions he asked, especially the initial one.) Bitcoin will survive or not based on whether the technology works and beats the political forces that try to stop it, not whether Mark Karpeles has gift of gab.
Seriously, some people here sound like scared schoolgirls every time someone does an interview they don't like.
"Oh my god, whatever will people think!"
Bitcoin is stronger than that.
The shock is not that he is expected to be conversant in English, the shock is at the astoundingly poor judgment exhibited by him to even appear. This guy controls 80% of the Bitcoin's liquidity and these is how they present themselves?
The cult of Bitcoin has you apologists bending over backwards to explain away this trainwreck, eh? Good god.