According to Google, that flight goes NRT to CAN.

So, you are entering communist China, do you really want to call the Captain to task?

Perhaps show him the pics you took?

You might get to meet the local cops, and have a little visit to the big house on some trumped up charges.

They would also take your camera to destroy the evidence.

Personally, I am of the opinion that the OP did the right thing.

Of course, you guys do what you want.