Are these the bars from Fran Bigelow's Pure Chocolate...
If so, the coconut cream filling calls for:
1/2 cup heavy cream
8 oz white chocolate, finely chopped
1-1/4 ounces unsweetened finely shredded dried coconut
So, yes it is only one-and-one quarter ounces.
Here's a blog "creampuffsinvenice" with an adapted version of the recipe if you want to check it out.