I agree on the issue you pointed out and see what you are saying even though IMO real change hasn't occurred if the subjects ends up suppressing their desires. Think about it. Could you ever not be attracted to a women or women? Also, the idea that these people are having to suppress their desires only supports that being attracted to a member of the same sex isn't the "choice" people have made it out to be.
But, the reason for that "choice" has been addressed. Again, using the example of Christine Sneeringer, she didn't choose to have her dad go Ike Turner or her mom, or to have her cousin molest her. Can you say that she would have been a lesbian, had those things not happened?
Exodus International often deals with people like her, who've had things like this happen to them. As Sneeringer states, as she developed healthy relationship with women, the lesbian stuff diminshed.
In addition to that, I am not surprised that there are studies that support the possibility of change as they did review some 80+ of them. This latest one is no different.
Again, it all goes back to who is defining success and how. APA defines it one way; evangelical Christians (and Exodus International, in particular) define it another.
From a Christian perspective, suppressing desires is nothing new (regardless of what they are). It's often called "dying to one's self" or "crucifying one's flesh". As the referenced text, verse 11 in particular, indicates,
.....And such were some of you: but ye are washed, but ye are sanctified, but ye are justified in the name of the Lord Jesus, and by the Spirit of our God.In other words, the grace and mercy of Jesus Christ helps people deal with homosexuality, just as it does with adultery, fornication, lying, theft, and other sins.