Why didn't we try lowering gp's barrel cap to 4 before all the way down to 3?

Gangplank got hit with the nerf bat HARD this patch. Like near-gutted hard. the nerf to his q's plunder was already pretty substantial, but then there's the barrel nerf. Oh man that barrel nerf.

Look, im not gonna sit here and tell you that Gangplank didn't deserve nerfs, because we all know he did. I don't main gp or anything, but I have played him for enough to feel like I at least know what I'm talking about. And lowering the cap on his barrels is HUGE. The need to put them out in a fight (and correctly) was already something that required a lot of practice, and it was the fact that he had 5 that let this happen

I'm not mad or salty they nerfed the cap, because this by itself it not a bad nerf. In fact it's pretty smart. New Gangplank's been out for a while now, so we can make it harder to play him successfully, that's fine. But I feel like lowering the cap to 4 first, seeing how well that plays out first, then nerf a little more if needed would have been smarter. When the cap is already only five, even taking one off can have huge effects. Going all the way down to 3 in one go was a little excessive.

Neither the flames nor the depths could claim gangplank, but Riot sure could.