The fruit has fiber and a lot of other ingredients that slow down absorption of sugar. Not to mention, you wouldn't eat as much fruit in one sitting as the numb

The fruit has fiber and a lot of other ingredients that slow down absorption of sugar. Not to mention, you wouldn't eat as much fruit in one sitting as the number of fruits you've extracted into a cup. So you're consuming (1) just the sugary liquid extract of the fruit, and (2) getting much more of it from more fruits than if you were eating whole pieces of fruit.