Final Ixal quest dialogue error

I'm putting this in a spoiler tag because it's about the last cutscene in the Ixal quest line. The picture does have a spoiler in it.

Quest: Spread Your Wings and Soar

I've edited two images together for simplicity:
http://i61.tinypic.com/ru174h.jpg

The speaker seems to be wrong. The image shows Tatabaru yelling at Tataramu, but it says that the speaker is Tataramu. Maybe Tataramu could be yelling at himself in frustration, but it doesn't match the scene. I think that the previous two lines (highlighted) should be attributed to Tatabaru as well, but I'm not positive.

I went and found the cutscene and throughout the entire thing Tataramu is listed as the speaker when either the father or son is speaking.