Not Playing Your Drafted Role

So, I have an issue that I sent a ticket in about, and a Riot employee actually suggested I make a thread about it because it's a problem that has yet to be addressed. In the new queue system that dominates both ranked and normal draft queues, you have the ability to select a primary and secondary role. My issue, was I was queue'd with some butt munch that put fill as his secondary, and when he didn't get his primary (jungle) he locked in Shyvana, grabbed smite, and said "I'm gonna jungle." in the chat.

I would assume Riot saw this coming, so why is there no ability to report for it? There's no tab in the report screen for people who do not play their drafted roles, and there should be. When I select my two roles, I play what I am given, because that's the understood rule, but if there's no way to be punished for this, what's to stop people from just playing what they want no matter what they queue? It defeats the ENTIRE PURPOSE of the changes to the draft.

I want Riot to see this so we can get something done about this. I'm in Plat, so I had assumed most of the toxicity would be in low Bronze, but apparently there are hundreds of guys "serious about getting to diamond" and insta-locking Riven no matter their role.