To start with, since the Vo did mention in black and white " The applicant has been refused SP before" it clearly indicates that his decision is biased. As per Yaqoob v. Canada (Citizenship and Immigration), 2015 FC 1370 (CanLII), Visa officers should have an impartial and objective decision on the application before them based on the evidence submitted in support of it. I have to agree with the other members that changing your program made you look bad. However, I would still stress that having " Dual Intent" is absolutely not a reason to refuse an SP. If you have some money to spare, I would advise you to hire a lawyer and go for a judiciary review of your application.