Why Does It Matter Who Made the Decision and What Reason You Were Given?

Because the legal question is usually why an employee was treated differently, not only whether the treatment felt unfair. A bad manager can be unfair without violating employment discrimination law, so the reason behind a decision is where the analysis starts.

One bad meeting or troubling email rarely tells the entire story. The full timeline matters, including what happened before and after the problem began, the people involved, and how management responded. An employer's stated reason should make sense when compared with the documented record, so who gave that reason, and whether it has stayed consistent, can matter as much as the decision itself.