I'm just cuious: What was so wrong about it?
I thought it sounded quite good. I'm no sound expert, I won't get into the engeneering bit, but I can't say I found the voices bad at all...

And comparing Telltale with LucasArts in't exactly fair. LA is a big company with lots of resources, while Telltale are pretty much in the process of getting established. There is bound to be a differance between the two, even if the Telltale staff all are very talented people.