Keep in mind that we had a Super writer previously saying that he'd thought of Goku as holding back in that berserker battle, which lines up better with the most recent episode.
Again, having power doesn't mean you've mastered it. Kale's put nothing into actual training so I wouldn't expect her to but she's the only thing stopping her LSSJ form from scaling up that high.
Then we get this episode with SSJ God Goku doing better against a controlled Kale who is said to be stronger than the Berserker one in the episode itself. I think this random holding back with no signs or reason for it is pretty bad, but considering what we're getting it does seem to be the case.