Ehhhh… No? The Key magic in Angel Beats was (Angel Beats anime spoilers) was Otonashi existing in that world in the first place. Though I’m entirely with you with Key magic not needing to be a thing at all for a show to be good. I’d say the dependency on Key magic is often a flaw in Key works to begin with.
Can anyone actually describe what people have been criticising about the animation? Since I’m with Yerian here and the animation is good. The shot composition on key scenes has been stellar, if a lil bland in most moments, and the NagiAsakura things peeps have been comparing too… well those gifs from earlier made Charlotte’s scene look better.