“The fourth one was Tefillen on chol hamoed. It’s funny that nobody here has a problem with that.”
Doing it, or not doing it? The Shulchan Aruch HaRav paskens that one should wrap them without a bracha, but admits that the regional custom (of Belarus) was to indeed make a bracha. Chabad now clearly does not go like this.
Neither shittah in that machlokes is controversial though, so I don’t know why you would even think anyone would have a problem with that (whichever you’re referring to).