Tech shared her opinion unasked

I recently saw a new doctor for an existing problem. They ordered x rays ( done in-house). I shared with the tech what my issue is. When they looked at my x rays, they blurted out “ OMG, I have seen a lot of those but this is a big one!”. I was very taken aback by this, I felt it was inappropriate and I would have preferred to hear it from the doctor. We were also not alone in the room. When I saw the doctor, I did not mention the incident. I do not want to be known as difficult. I really liked the doctor. I got a request for feedback for the appointment. Unsure if I should mention this. Would a doctor want to know? I think it would be easily traced back to me if I say anything. Am I overly sensitive? I have been thru a lot of medical issues last year and may be a little thin skinned.