Well, there are still tons of factors that go into honoring someone.
Some people just click on a random person to get to the stats faster.
As a person who loves top lane, I found that if you play top and don't constantly roam and carry the game you're almost never honored because you don't really impact bot and mid that much (the majority of your team).
And other things like I believe RossBoomSocks didn't honor a 28/0 Yi because he closed out the game too quickly for him to scale up.
Some people just honor their lane mates for the heck of it.
Additionally, stats are calculated before honor, so I think having your grade changed based on honor is kinda silly.
Keep in mind reports affect your honor level as well so should reports in turn lower your score?
That's just my opinion, I think honor should really stay out of the endgame stats.
Yeah just work on cs and you'll pull of an S left and right. However supports barely have to worry about cs so if you want to farm chests I suggest picking up a few Thresh or Blitzcrank games.