Yes it takes a deep understanding in the field, so please tell us why ASIPs methodology is wrong?Firstly, @manqiangrexue wrote "China leading in 90% technologies". He's using ASPI tracker which measure certain things, to draw inference on state of play in various tech.
Secondly, ASPI's tracker for example in Generative AI makes no sense because most research in Generative AI happens within large firms, few of which open source anything. Other than that, the top papers in NeurIPS etc. (not the total papers) are still coming from the US. It requires deep understanding of the field to understand who is ahead on what. Counting total publications in list of journals is one very heavily skewed metric, which @manqiangrexue believes when it shows China leading but discards when it shows China not leading.
It's a critical technology tracker. If they were biased with this tracker like you say, to get more finding, how did they skew and bias the tracker in their methodology? Enlighten us? I'm genuinely interested to know how they made a biased tech tracker report? Please educate us.

