No one likes a tie. A loss stinks, but a loss either comes in clearly or close, and you can process that and move on. A tie requires 10 minutes of pure frustration tacked onto the end of a full game your team couldn’t win.
If you wonder why the reaction after a tie seems worse than the reaction after a loss, that’s the reason. We all sat there and watched another period of incredibly frustrating football after watching a game that already disappointed. A loss at the end of overtime would have been deserved, you play badly, you lose.