Or make the same promise but also backing it with force, meaning they could have and should have did the force build up prior to Pelosi's trip and then cut off diplomatic channel and just use the military channel for further discussion. After all, there's no distinction between the PLA and the CPC since the CMC is headed and chaired by Gen.Sec Xi.Reads like North Korean propaganda.
That said, imagine if they didn’t make known the nature of the threat and just used normal warnings through diplomatic channels. When the warnings have failed and they revealed that the exercise would lob missiles into “territorial waters” it would’ve been a major moral booster. Instead, they over promised through diplomatic and unofficial channels, doing the equivalent of promising a Ferrari but actually buying a Wuling Hongguang. Understandably people are pissed.
I am still annoyed tbh because for me it strengthen Chinas enemies and weakens her potential allies like in the Philippines, Laos, Cambodia, Solomon Islands even in countries in Middle East, Africa would question if China is all about the $$$ and nothing more. What good is the money if you can't even defend your dignity.