Just goes to show that while a lot of non-US commentators on the American scene are familiar with our Constitutional "buzzwords", many of them know little or nothing about the actual substance behind them.
The First Amendment is a prime example; who hasn't heard of "Freedom of Speech" and that "Congress shall make no law respecting an establishment of religion"?
Many of course confuse Jefferson's letter to the Danbury Baptist Association in 1801, the famous "Wall of Separation" letter with our Constitution. That letter is where the phrase "wall of separation between church and state" originates. Many people make the mistake of thinking that "Separation of church and state" is a constitutional tenet that prohibits any mention of religion by politicians.
It is not.
The First is a clear, simple statement.
The establishment clause prohibits the government from passing legislation to establish an official religion or preferring one religion over another. The free exercise clause prohibits the government, in most instances, from interfering with a persons practice of their religion.