> And when they ask "why?", it feels awkward. If I tell them all the reasons, it will influence their perception of their situation (which might be quite positive)
I find this on itself to be a dysfunction. In well functioning team, they would be able to guess, because they would know your general opinions. And their positive opinions would be known too.
As in, this happens only because the communication within the team or within the corporation is dysfunctional and people dont talk in the first place.