Vision Score for Revealing Wards
I just got done with a game where I jungled as 
and ended 5/9/24 with over 60% kill participation. So not a bad game at all but here I am in the post game lobby to check my grade and low and behold a B- is my reward.
Curious I checked all the external factors (cs, vision, cc, team participation, objective control, ect.) and found that my vision was a laughable 14. To be fair, I took sweeper 1st back and only bought 2 control wards the entire game. But on the flip side, I had a 
(my duo) and a 
top and every time I'd sweep a ward I'd let them kill it for the gold (I was building tank) so they could snowball. I still got some gold for sweeping but it didn't help my vision score thus the 14 even though I must have swept at least 15.
This leads me to the topic of the post, why don't you get vision score for revealing wards because it's not always advantageous to clear them (whether you're funneling gold or you have a control ward canceling vision and don't want to reveal by hitting enemy ward).
