While full voice acting would have be fantastic (oh what I wouldn't give to have certain scenes or support conversation to be fully voiced), it understandable why considering all the text in the game and how long it would have taken. I actually rather like the clips as a substitute for silence or only VA in the cutscenes. This way, every character has a voice instead of the few that show up in the cutscenes.
My 25 Most Favorite Games - http://www.unikgamer.com/members/strawberryeggs-786.html Official Nah of the Fire Emblem: Awakening board.
You forgot about "GAWDS!!!1!11!", TC. And I see no problem with the constant moa-I mean, the constant "hmph"s and sighs... Full voice acting would be bad here, I usually skip some characters' talk scenes in games like that because I either get tired of hear their voices or because I don't like their voices to begin with (like Chie in Persona 4.)
If you're reading this, CONGRATULATIONS!! You're wasting your time!!