Chessbase is notoriously sketchy and there is a lawsuit against them for blatantly stealing GPL code.
https://stockfishchess.org/blog/2021/our-lawsuit-against-che...
Because their article is easier to read, your link isn't even directly to the paper.
And unlike the fake news media who gate-keeps information to ensure their monopoly and to stop you Gell-Mann Amnesia them, Chessbase has included a direct link to the PDF and the abstract at the bottom of their article. That's awesome.
Bike-shedding GPL violations over quality and honest articles doesn't interest lots of people. They can read about the OT stuff in proper HN discussions on it.