This article seems to be politically biased BS. It goes into where most bicycles are made, yet completely leaves out Taiwan, which is a huge manufacturer of bicycles (including most of the high-end carbon fiber ones). Giant is the largest manufacturer of bicycles in the entire world, and is a Taiwan company:
Giant also produces bikes in main land China. On top of that is the carbon bike market quite small compared to casual alloy bikes.
It's pretty shitty to argue that something BS without providing a single datapoint for the contrary. Just the internal yearly market for bikes in china is larger than the Taiwan population. It would be extremely surprising if Taiwan is even got close to the production output of China.
Your link shows some pretty low sales numbers. Not even 1 mio. units sold in 2018. While the E-bike production in China the same year was over 30 mio.
I'm not saying that Taiwan is not a big bike producing country. But comparison to the total world market of all categories of bikes, their output is not world leading. Just because you are personally into Taiwan bike production doesn't make it fair to call researchers politically biased (especially with your bias so openly on display).
https://en.wikipedia.org/wiki/Giant_Bicycles
Instead, it names "China" as the #1 producer by far. Taiwan is a separate nation.