Of course a double jump requires less setup and is more of a surprise, but that applies to any jump in the program. Doubling any triple to fit in more transitions, however, would not help with the scores.
That's because the difference in value between a Triple and a Double jump is massive. The difference in base value between a 2Flip+2Axel sequence and 2Axel-2Toe combination is very small. The former should receive higher GOE for Jason and also increase his PCS, meaning that in the end it is worth more points.