I worked with Maria back when I was at Auburn for the SEC Network. This was around six or seven years ago when she was still just a sideline reporter for them and was making her way up the ranks. Her anger is absolutely coming from personal experience. Her height was a constant joke among SEC fans in the crowd (she's some amazon warrior, should be out there playing on the field playing, ect.)
She never let that get to her though and was always very professional and down to earth to the camera guys like myself. It's cool seeing how far she's gotten in the industry