In the economic sense consumption means a resource is used and cannot readily be re-used at its original quality. Copying a file does not deprive anybody of anything, I cannot even see a reasonable argument when the case involves a market where the good is not even offered for sale.
I'm pretty sure that they meant "consume" as in "watch", not "consume" as in "make unavailable for further use". So, watching a movie doesn't consume it, but one does consume movies.
In the economic sense consumption means a resource is used and cannot readily be re-used at its original quality. Copying a file does not deprive anybody of anything, I cannot even see a reasonable argument when the case involves a market where the good is not even offered for sale.