Difference between technic and voice problems

I, as a whitney fan is simply disgusted at how some of the whitney fans reacted to the duet..they refuse to leave mariah carey alone...mariah's voice is not having problems..this is her new way of singing and i have heard her BUTTERFLY LP..she sings like that on almost all the tracks..just like that single MY ALL.....i have realised that mariah was not singing this way to hide voice problems when i heard her on divas live..the finale ..YOU MAKE ME FEEL LIKE A NATURAL WOMAN...she was singing her part with her VISION OF LOVE voice....she's just developing a new sound to her songs...so for heaven's sake...give mariah her dues...although we are whitney fans!!