I agree, but I do think the Celtics have the larger capability to surprise than the Cavs would. The C's are much more balanced from top to bottom than Cleveland and can play much better defense. We took them to 7 last year without KG, so having him back is nice. Though Orlando is much better than what they were last year, especially with Vinsanity's added shooting ability now.
The Celtics would be a harder task for the Magic than the Cavs, IMO.