Is it way too hard to get an S rank playing support, or is it just me?

Yo support mains, am I the only one who feels they're getting shorted by the post-game grading system simply because I play support? I understand how the grades are based on gold, kills, assists, etc., but the fact that supports largely tend to accumulate the least gold compared to the rest of the team makes it significantly more difficult to get an S- or above rank.

I have had many games where I've contributed a significant amount to the win and only get A's. Some of the most recent have been 0/2/22; 2/1/19; 1/4/24; and 2/2/19; most of which were games where I had the best kda on my team and had teammates getting S grades, but not me because I had far less gold.

My point is that the grading system is skewed to favor roles where the most gold is accumulated, which is fair in all cases except for supports who can carry a game and yet still not have the gold needed for the grade deserved. I've found that some of the only ways to get the S- grade or better is if the game lasts 35ish minutes or longer, I steal some kills/cs, or I play absolutely perfect.

Isn't there a way to adjust the grading system only for supports to make it equivalent to other roles? When I go 0/5/21 and "supported" my adc in going 10/3/15, yes he deserves a good grade, but I don't as well?