First of all, I don't believe I said anything about detachment from emotion.

Many Buddhist organizations see and practice meditation as a form of psychotherapy / relaxation, which is different from what I'm talking about. What they said to you seems in line with that style of practice---one that aims at not being stressed, not reacting in unhelpful ways to emotional upsets, not worrying over what one can't control, etc.

Many people seem to find that style of practice extremely helpful for themselves. For a person whose sole goal is to gain insight into the workings of their mind, I would probably not recommend it.

I wouldn't say that the group you're mentioning has "crazy ideas" or "bad communication". I'm sure they mean exactly what they say, and what they say doesn't seem especially unreasonable. Many people would benefit from being less reactive. I think it's simply a case where their goals are to become less reactive, and they practice accordingly, whereas a person who does not have that as a goal of meditation (and instead has the goal of e.g. insight into the defects of their own cognitive processes) would not meditate in a way that aims solely at cultivating that attitude. Different strokes for different folks.