The Road to the Dome was broadcast on RTE last Monday night.
It is the first time such a fly-on-the-wall documentary has been shown about the festival.
Radio Kerry is awaiting a response from RTE on the issue.
The 2016 Down Rose Fainche McCormack posted the complaint on the review section of the Rose of Tralee International Festival Facebook page last night.
The comment has since been removed.
Ms McCormack said the Rose of Tralee was honestly the most amazing experience of her life until Sunday morning.
She continues to say that she and the other roses did not sign up for a cheap reality television show in which she claims their emotions would be manipulated for entertainment purposes.
The Down Rose, who didn’t make it through to the live TV finals, also claims that cameras intrusively followed the Roses and they were asked inappropriate questions.
In a statement to Radio Kerry Chief Executive of the Rose of Tralee International Festival Anthony O’Gara said regional finals have been held for ten years and it is a natural thing that people will become very disappointed when they don’t progress.
Mr O’Gara said the manner in which the extra TV show – The Road to the Dome – was finished was insensitive, they didn’t anticipate it and wouldn’t like to see it repeated.
He said there was an apology given to the Roses which they accepted.