User blog comment:Xilinoc/Ch. 587 - The Headless Star 6 (for real this time)/@comment-2211792-20140703125145/@comment-5398287-20140705002718

Erm, it's not quite the same here. See, in Kensei's case, we actually saw him and Wonderweiss clash, so we knew they were actually fighting; in Shinji's case, Bazz-B just used one attack on him in an attempt to kill him and then left in what amounted to a hit-and-run. There wasn't even the beginning of a fight there, honestly.