> In fact, as of the fall 2019 semester, Gerber had been officially enrolled only at the university in China, not at St. Gallen.
So he was a Swiss person doing a PhD at a Chinese university. His relationship with the professor at the Swiss university was an unofficial one, so the word 'dismissal' here is pretty misleading. No information about what happened to his actual PhD program at the Chinese university that I noticed.
The actual evidence of chinese influence?
> She said she had received a message from a Chinese doctoral student doing research at a Canadian university.
So, it sure sounds like some people had their feelings hurt.
My totally made-up hypothesis on this article: honest reporter researched a story, realised it was pretty weak, then when they wrote it up shuffled things around a bit to give an exaggerated impact, but couldn't bring themselves to lie or leave out any facts.
As for the Canadian student, the quotes from the professor herself are what say the complaints came "from China". Perhaps she meant from the Chinese student in Canada, but if so that's her error, not the author's.
The patent is on Captcha, not on using Google. It even appears to be a patent on image Captcha, and Google is the main provider of non image Captchas.