Shinobu - Infinity Castle

Was anyone else completely let down by how quickly Shinobu died? I have no issue whatsoever with her being overwhelmed or finding out that none of her poisons were effective against the demon.

However, I feel like I didn't really get to see or appreciate much of her breathing style. Watching Rengoku die in the movie might have been unexpected to me but man was I satisfied with the fight. Shinobu... meh.

I'm also aware that there's a plan B but... it just feels so anti-climatic for her.