Why are there no new support masteries?

Rito, you're adding lots of new masteries in S7 which I think is great. Obviously the ferocity tree should be fully geared to damage but there's a support keystone in both cunning and resolve so there should be at least some filler support masteries. In particular, a lot of people really miss the additional experience when close to nearby allies mastery around in Season 5. Why not add this mastery into the cunning tree instead of the (even more) damage masteries being added?
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