In this article, Tushnet and Keller define parody and satire, and how such strict definitions can lead to problems. Like Long, they argue that such a clear definition can allow the court to almost choose which genre the works fall under, and therefore indirectly suppress what works are allowable. They go through a history of cases, including copyright and trademark, but I will concentrate on copyright as specifically relating to my project.
Therefore, Tushnet and Keller argue that the current mutually exclusive definitions of parody and satire should be forgotten. Instead, it is the critical insights that should be examined, without judging the merits of those insights the way parody or satire might. Otherwise, parody is favored unfairly over satire, suppressing one form of expression and promoting the other, which is not the purpose of the copyright laws.