Is there a logical sequence to this?

The first event is this:

http://en.people.cn/n/2015/0403/c90883-8873843.html

If China does not protest, it sets a precedent by which the US will feel thereafter land any number of military planes as it might whimsically fancy.
Therefore, in preparation, China feels the logical need to follow Baden Powell's Boy Scout motto:

Be Prepared.

So, Be Prepared, means this:

http://en.people.cn/n/2015/0403/c98649-8873407.html

So, like the contrived Gulf of Tonkin Incident which finally "Open Sesame" for Lyndon Baines Johnson to take the US into the American War in Vietnam, China is now in fearful paranoidal trepidation that LBJ-mark-II might contrive a South China Sea incident to "Open Sesame" for an an American War in China itself.

As General Curtis Lemay once said:

Lets bomb them back to the stone age.

For those of you who work for US National Security and hacked into this website, pass this concern on to your superiors and tell them to follow Darth Vader's advice to his son, Luke:

Go with your feelings, boy!