First time for J-16. They usually send Su-30s for this.
China rapidly needs to do something big to stop the slide. Whatever China is doing right now, which is just flying planes around Taiwan, its not working. Taiwan and US are continuously doing Salami slicing. Whether its changing Taiwan passport, stopping all Chinese investments in Taiwan, all the US arms sales and visits.
Even Europeans are now engaging with Taiwan massively and China's warnings are just not working out.
There is only one way to stop this slide, China must show that it can do more than just posturing. They need to show that they have the courage and stomach to actually fight a war for Taiwan. They need to put the fear of destruction back into Taiwanese minds.
Escalating to the brink of War is one solution. Shooting down a Taiwanese plane or sinking a Taiwanese navy ship could be one option. Another option would be to fly PLA bombers directly inside Taiwan. But even these actions might only increase Taiwanese anger without cowering them in fear. The other option is to take one of the Taiwanese islands like Pratas.
China needs to do something fast or else Europeans and US will simply ignore one China policy and start sending diplomats in Taiwan and simply ignore China's warnings. And China cannot stop relations with both US and Europe just for Taiwan. So, the only option is to hit Taiwan itself. It must be Taiwan that needs to stop US and Europe from doing these actions. Only the fear of War will bring Kmt back in power. Only the fear of war will prevent Taiwan from taking more action to desnicize Taiwan.