The trouble is animations. There are very few modellers/animators working on tremulous, and their work is often difficult and lengthy (and as a consequence, slow). Very good sounds are also difficult to create.
Truth is, any fool with a text editor can write code. It takes talent to build a realistic animation.
Coders: I'm joking
Animators: totally serious.
Yeah, this is totally on target. Rather than have a bunch of mostly worthless junk animated, I'd rather see animation efforts go towards animating a first person view of the alien's claws and their attacks, reloading animations for human weapons, and polishing up other bits of the game that seem unfinished.
Besides, we don't need animations for all the crap suggested here, just some sort of voice command system kind of like Enemy Territory's V-says or the system the Tribes series used. Animations might be nice, but there are better uses of the dev's time.
I don't know what the current status is, but such a voice command system was in the works at least at one time. Back in 2006 (

), Dolby even asked for suggestions for such a system.