as of last night, It looks like the itunes podcast app is auto-updating. In order to get it to show up you will need to turn your phone off , then on again. This same issue happened with the giantbombcast.
"Mutant" isn't any more an offensive term than "Fat". You're fat if you eat too much and become visibly overweight. You're a mutant if you are a mutated being. People being bothered by what they are does not then make the word derogatory. I am a man. If I hated being a man, "Man" would not then be a derogatory term.