RFC is not the problematic item, Shiv is

I see a lot of people talking about Cannon Shiv and I agree it is problematic. But the way I see it, is that Shiv is the problem item.

Cannon gives 25% faster charge time, and one shot with up to 150 extra range. Who would this item benefit alone? Marksmen who only need one auto to start their job or do their job. Ashe can start chasing with the extra range slow. Draven can chunk a squishy out of position. Jhin can finish off a low health enemy.

Now who benefits from Shiv? AOE critical strike magic damage. It let's you chunk mayne two people with one hit, while adding mixed damage which makes itemization more difficult.

The reality in my opinion is that Shiv should be toned down in some way, and Cannon left mostly alone. Shiv gives marksmen, who are designed to be a relatively single target DPS class access to AOE burst damage. This doesn't even go into the fact that it also gives great wave clear, which is meant to be a niche that Hurricane gives but Hurricane is largely ignored on some of its bets users because it just gets out paced. Even champions like Ashe and Twitch who have great synergy with Runaans do to having strong on hit effects generally would do more damage if they just get Statikk because why proc an on hit effect when you can proc them with being dead as shit.

TLDR: Change Shiv, don't change Cannon much.