If it turns out to be the case that the main reason why Chinese philosophers never discussed Being is that Chinese has no word for "be," that would seem to me to be a very strong indication that Western philosophers have spent centuries asking the wrong questions

Or that Eastern philosophers have spent centuries failing to ask the right questions. If language A makes it easy to ask a certain question and language B makes it hard, it doesn't follow that it's a bad question arising only from quirks of language A; instead it could be a good question hidden by quirks of language B (or revealed by in-this-case-beneficial quirks of language A).