We generally see family members taking the high road so their beloved contestant doesn't look bad. But sone do try to play the game on their behalf, they think they can influence the game. Like Bakhtiyar did for delu. He actually helped her.
IMO Sana's Father created the most controversy, bcoz he had an opinion about everyone. Tried to keep his comments according to Sana's game instead of being honest and unbiased. He clearly didn't take a high road.
His comments in preparation for the visit & during the visit was very direct interference in the game of Sana & others. Do you think he could have avoided most of his comments about others? Did his visit benefit Sana?
