Dear Riot; If I get an s on any 4- champ, why don't I get a mastery token or a huge boost in xp?

I'd like Riot's opinion on how the mastery system is doing in terms of satisfaction; overall i'm very happy with the mastery system, but I still feel obliged to share the issues I've felt recently. Take my criticism with love.

"Dear Riot; If I get an s on any 4- champ, why don't I get a mastery token or a huge boost in xp?"

I'm not suggesting that one could skip levels with this system, but it feels bad to get a huge score with heimer or ziggs at levels 2-4 and not get rewarded very well for it. I don't get a token to use later to prove that i'm worthy of level six, and the mastery points I got for an S+ Heimer game were pretty lean in my opinion. I had hoped I could at least jump up to hit m5 faster because of my allstar performance, but it just kind of seemed like any other game.

On related notes, are there any plans for expansion on the Mastery system coming soon, like an S-tracker or a few more mastery levels? Maybe a slight Summoner level boost when you get an s in game? Maybe simply allowing the collection of a large number of tokens so players can eliminate the essence cost of mastery 7? (like ten or so?) Just a few ideas.

Love, Boat