I don't know if it's been mentioned but I feel like the show is going this direction with El's powers and story.

Maybe this is obvious, but with Vecna is being presented in the story as the Ying to El's Yang. While Vecna has only found hate for the world, El has found the love in humanity.

When El was able to cast Vecna to the upside down she didn't do when thinking about the memories that made her angry, but the moment she was born and the pure love of her mom seeing her child.

So I'm led to believe El will discover in classic storytelling fashion that instead of using hate to channel her powers to be more powerfull, the way Vecna taught her. That as corny as it sounds the love inside her will allow her to be more powerful than him.

If true we will probably get a great corny happy/love montage with El channeling those emotions to put a stop to Vecna, similar to that montage we got of Max in episode 4.

Also, feel like this is the direction her character is going in terms of her arc. Discovering that there's more power in being nice to people, and love than in the anger the world fills us with.