You are certainly aware of the case of thousands of Syrian and other refugees currently comig in en masse in Central Europe, with families and kids. Some of them are already attending special classes in Austria, Germany and the Netherlands to learn basic Dutch or German. One 12 year-old Syrian started writing German after being the first week in class. This is what can happen when language lesson are effective , and in the case of the class attended by that Syrian kid, it was not with a teacher dancing like a monkey.

If a teacher did something like that at a public school in Central Europe, they would fire him or call the police to send him in handcuffs to lunatic asylum. Just to give you a perspective of how things mostly work in major parts of the world while white monkey dancing is a sub-standard and decadent exception in corporate EFL, especially in China.

As for training center directors or for that matter most any Chinese giving advice - no, I'd nearly do the opposite of what they'd suggest! I've heard the most ridiculous ones actually tell teachers "go in the room and dance like a monkey - the kids like it!". Seriously. I've heard that.