The "journalist" has no official record of him[1]. He also held a travel visa to Hong Kong and failed to show press pass on the scene[2].
It is wrong to do this to anyone and the protestor organized an apology session in HK airport the next day.[3]
[1]: (if you read chinese) http://cablenews.i-cable.com/ci/videopage/news/554875/%E5%8D... [2]: https://www.facebook.com/HKJA.official/posts/101572528984603... [3]: https://www.voanews.com/east-asia-pacific/order-returns-hong...