If Apple sells 400M and Huawei sell none would good for Apple and terrible for Huawei. This story is about Huawei selling more than 200M phones per year, the number Apple sells per year.Not sure I see the logic. The market is finite. If Apple sells 400M and Huawei sell none, you telling me that's not good or bad? The market has ways of making expensive goods seem cheap.
Scenario A: Apple sells 200M, Huawei sell 50M
Scenario B: Apple sells 210M, Huawei sell 250M
B is better for Huawei than A. B is just a little better than A for Apple despite the fact Apple moves from #2 to #3.
The market is finite, but they grow over time. Also markets are made of many sub-markets, most of the 200M extra phones sold by Huewei in Scenario B would be to people who would never buy an iPhone due to the high price of iPhones. The fact these people now own a smart phone rather than a dump phone or no phone, doesn't hurt Apple.