I'm sorry, but I had Google translate the petition language and it says nothing about Chinese (or Japanese). All it says is:

"Because of the Faculty of Arts plans to close subjects Russian, Italian, Greek and Old Church Slavonic, University of Gothenburg conducted here a petition for all of us who see and understand the language's value.
The name list shall be forwarded to the president and faculty leadership. For more info, see:
http://www.dn.se/kultur-noje/sprakundervisning-i-fara-v
id-goteborgs-universitet"

I understand your fear that other languages might be next, and I think that closing down Russian at least is shortsighted, but I personally am not supporting opposition to the languages named, but rather to Chinese and Japanese so did not sign. Please let us know once there is a threat to Asian languages too.
Best regards,
Ellis
Ellis S. Krauss
Professor,
Graduate School of International Relations and Pacific Studies University of California, San Diego