User blog comment:Miskos3/Fairy Tail Episode 190: The One Who Closes the Door, Review/@comment-5598380-20140712052207/@comment-2214433-20140712171946

Baseless speculations, but since they completely omitted all Blue Pegasus commentaries during the final game and alike, I'd guess they simply didn't want to have too many voice actors to pay, especially if the lines can be replaced by someone else (i.e. Thunder God Tribe) and so on.