I was always ready to be part of the solution, so I don't think I was being empty when complaining about things. But I have to add that I wasn't maximizing for appearing polite. I never cross the line of not being respectful, though.
Indeed, the management could have a different idea of what was an ideal direction. I just happened to disagree. It was a very small company, so I don't think I had a lot of different information. But even if that was the case, this was a good opportunity to have a perhaps heated but interesting discussion.
During these conversations, there were never clear signs that the "decision was made and the path was chosen". My concerns were usually replied with "huh, ok". Therefore, I continually brought it up, since it was my interpretation that people were not convinced yet.
Honestly it sounds likely that management didn't handle this well, but possibly you pushed things further than you should have because you hadn't received a clear (to you) signal to stop.
Indeed, the management could have a different idea of what was an ideal direction. I just happened to disagree. It was a very small company, so I don't think I had a lot of different information. But even if that was the case, this was a good opportunity to have a perhaps heated but interesting discussion.