Request; Bring back the griefing report option!

I know this is purely subjective, but I just got out of a game where we had a Karthus jungle and, unsurprisingly, we lost. I looked at this guy's match history and, also unsurprisingly, he had a 25% winrate with Karthus with 11 games played. Personally, I hate toxicity in this game, so I try not to say anything that would make me sound like an asshole, including flaming this guy. I think the closest I got in this game was just asking "Why did you go Karthus jungle?" Anyway, I said I was going to report him in post-game chat, and that got me reported by most of the game because I was reporting him for a "stupid reason." I'd link the match history but I believe that would show names.

Anyway, I think that this would have been a perfect case where the griefing report would have applied. After a while of looking at the report screen I just selected "Assisting enemy team" and clarified that he didn't actually feed, just troll picked.

Doubt this thread will be seen, but I'd appreciate someone else's thoughts on this.