How is it misleading? It's clearly written.

"A unit who attacks Sasuke with a Taijutsu skill will have 20 chakra points absorbed from it. Units who attack Sasuke have a 45% chance to receive chaos."

Emphasis mine. Note the period. It's 2 sentences, and it doesn't say "and". So it's 2 different things. Taijutsu attack steals chakra if possible. Any attack has 45% chance of chaos.