By the tradition of our founders she had every right to give praise or thanks in a public ceremony. One of the first men to include doing such in one of the first acts of this nations government function? George Washington as he would not take the oath of office until his hand was placed on the Bible. Note Placing the elected POTUS hand on the Bible is not a requirement for taking the oath of office. Taking the oath however is. Washington, Henry, and even the most secular among them Jefferson, all agreed this was a right.
Liberal apologist who see governments authority over the citizens being brought to question seem to have the most issues with such acts as this. To some the government is their god. None dare better speak against it or question it's authority in their eyes. Our biggest mistake in education and other things was letting the government become the provider of the service to start with.
This young lady may see the coming day in this nation where she is told to renounce her faith. I have a feeling she would be among those who would not bow to such tyranny. Others like babbling idiots would praise the government for settling the argument once and for all.
Of course some think it rude for a former Chinese doctor to condemn a tyrant butcher communist dictator as well. How ironic some say she had no right to do such. Communist Dictator would agree very much with them.
You, like others on this forum, seem not to get the difference between adults, who have free speech rights, and children, who do not.