I think that’s because it’s a Chinese Project. Same thing with Ant Design Components, which are really awesome but not as well known as they should be.
I think it being Chinese is part of the reason as some of the examples in the early days were Chinese only, which could deter some people. It is certainly more complex (for a good reason in my opinion), I can see why it is not well known since I think the vast majority just wants to create simple charts. However, with echarts, it really can meet Enterprise needs.
Yeah that might be why. A couple years ago I was trying to find "this cool charting library" I came across and I could not get it to surface in Google.
It seems good, but their docs websites are absolute trash (though they've seemingly gotten somewhat better recently - they were previously completely unusable).