Well, the subconscious communication hasn't until recently, but Steven has been showing signs of having psychic wavelength abilities for quite a bit. (Which could factor into how he was able to communicate with Lapis and Jasper) Remember what happened in Maximum Capacity? When Steven confronted Amethyst tormenting…

5. Lion 3: Straight to Video
4. Maximum Capacity
3. On the Run
2. Story for Steven
1. We Need to Talk

Ah, glad to hear!

Give it time. It doesn't have to have a deep plot or incredible writing the first few episodes to be a promising cartoon. It's JUST starting. Steven Universe and Gravity Falls didn't start off the way they are now and look how successful both series have become.

>Expecting lots of characterization in the first episode