No, this mod can't get easily detected. And I think there's no combat log as u said. I'm already tested it with 3 accounts. On my 1st and 2nd accounts, it's still level 25 and level 27 i'm doing Abyss mode and memorial arena mode to get higher rank. Both of them got banned.
My 3rd account using this mod, only doing main storyline and side story solo. I'm already reach level 56 for 4 days. Never did Abyss mode and memorial arena..
And it's still fine untill right now.