A question about a recipe: Lobster Diavolo

I have a question about the ingredient "Roma tomatoes (or 28 ounces canned tomatoes with their juices)" on the recipe "Lobster Diavolo" from merrill. Wow! *drool* Are the tomatoes peeled for a better looking dish, or do the peels alter the flavor. I am tempted to leave them on (nutrition, fiber), but don't want to chance wrecking a very special dinner. Thank you!