I agree on the part that the level for ranked games should be increased to maybe 15 or even 20. 7 is just way too low.
I also agree with @LifeupOmega the gap is indeed too large. I think we need to stir up the community; guides, videos, community events, etc.
I remember playing A.V.A back in 2011-2012. The community was so nice and so good, people helped each other, made guides for each other, and so on. Made the game a lot more fun.
IMO, there should be tutorials for each class, showing the essentials for them, how/when/why to play them (maybe even rewards for completing these tutorials).
A.V.A, again, has great tutorials, even teaching how to play escort (moving the tank, repairing the tank,…). Such tutorials lack here. So many people are cluesless when they play escort. They just repair the thing, and run away, not knowing that they need to be near it so it can move.
Fortunately, the game is still in its young years so this may be all added later. But the sooner things like this get included, the better it is for the game.