So?
Commies always do stuff like that. Renege on agreements.
你五毛對不對?
Merely pointing out that China rejected all these old treaties, so no-one in his right mind would consider this one enforceable.
And China DOES ignore treaties all the time, new or old. The International Law of the Sea for one. What is going to be done about that, never mind something from 1895?
Its all about power. If you have it and they don’t, then you have a treaty. If not, not.