Patterns of communication where assertiveness and confrontation are the norms will create a relationship of trust.
This pattern will be of trust because when employers and employees have assertiveness in their conversations, this means that they are respectful and interested in maintaining open lines of communications, no matter the circumstances, This also means that confrontation of ideas is part of the daily business' communication, in which differences are welcome, ventilated in a respectful way, and at the end, members of the organization will come up with a solution.
Speech should not be restricted simply because it can be misinterpreted by others. If this is the criteria for restricting speech, then all speech can potentially be restricted since speech can easily be misconstrued.