> It’s official: Tesla Gigafactory is now the largest annual producer of battery power in the automotive world

Official according to who? I suspect that, like much of the less critical reporting on Tesla, it's just reprinting a press release. In any case, that doesn't match the headline; it's just claiming it's the single biggest factory. There's no substantiation of the headline at all, and looking at the numbers it cannot be true.

Well theres a tweet from Tesla which is the original source I guess.

And you may have noticed how the internet gets, when Tesla/Elon says something that isn't true, so I guess theres some basis to it.

The Tesla fanboyism goes both ways, there are many, many people waiting to point out they are wrong.