Now if mom was say Imogen Cunningham or Dorthea Lang I might give her words a bit more thought.

My dad does this on occasion. What burns my hide is he is often right when he makes the comments.
Since my dad was the family photographer all my childhood, I wish it was he commenting. And, yes, if she was anyone with a history in photography, I wouldn't even have asked here; just put my cameras away and bought a hammer or something.