The problem here is that its not completely non-specific. Locke has a line designated to him which makes sense cause he's the only character at this point who has to be in your party. You only get a non-specific line if your lead character is anyone but Locke and Gau. I hardly call that reason to be alarmed or disturbed.

Other lines that appear later that are non-specific are so short, I can't imagine trying to create half a dozen variations for it. Like when they get to Ramuh transforming into Magicite, and the party line is simply, "What do you mean?" I can't imagine trying to make that any more character specific lines cause it would be lost in the translation. You see this down a little ways with one line after Ramuh's death where Cyan and Celes get their own lines similar to the generic one but the reasoning is completely lost in translation cause there are no words to give a feminine voice and no true english equivalent of Cyan's speech pattern, so no matter how you translate it in English it comes out almost the same way.