Being heard: listener question

Deep into THEM course I came up with the question about giving and receiving feedback.

To give some illustration to this question I can recall my own example that happed to me while giving feedback to leaders of my team at work. As I presented my point of view what's working and what could be done differently  I got the answer from two of the leaders as they both said, that this is just mine projection and point of view and that they don't see it that way. So my feedback just bounced back.

I felt cut off with this single sentence answer feeling like my opinion doesn't matter.

And as I looked at it later and also today my conclusion is that it's difficult for me to be a part of that team which doesn't accept or at least openly discussed feedback of employees. 

Being in THEM course keeps me wondering: ''Is my conclusion about this event childhood need to be heard or adult response to it''? What' real here? Is the difference that makes the difference between the two in the feeling?