I was willing to take the side of the Thai authorities, until I read the part that they asked to come in and they were allowed. If they went in without asking to make sure it was ok and stared reporting on the issue, then they are for sure in the wrong, but from what this article states, if they were allowed in after asking, that falls on the Thai authorities for probably doing something they should not have.
After reading about what has happened to them as a result of their actions, I would say that there is more going on here then you and I will ever know. I'm not going to speculate, but military regimes generally like to make sure that they control any narrative.