Is it acceptable by Western standards?
That wouldn't bother me at all. What would bother me is it's still moving around. I prefer my food to be stationary. It's too much like playing with your food. Plus if it kicks a piece of meat off the plate I'd be pissed.
Same reason I am not keen to eat live squid/octopus. Other than the fact that it would be incredibly difficult to eat, I don't think there is any benefit to the flavor at all to have it still alive than to have it immediately after killing. It's just as fresh, and the chef can cut it into manageable chunks instead of making me wrestle with a fucking tentacle demon.