Imagine a rainbow that needed to be told that it was beautiful, that needed to be told it was the most beautiful of all rainbows, that needed to be told it was special. That's the kind of image the ego holds for itself.
Because the ego is an image, a bundle of self defining concepts, unnecessary things are needed to support it. It seeks compliments. It seeks entertainment. It creates complexity in its effort to support the image.
However, as the ego dissolves and recedes into the background, all the energy that went into defense and self promotion becomes unnecessary. No need to try and drop effort, there is nothing left to support any effort. Effortlessness is what is left.
When understanding comes, simplicity has an appeal that it didn't have before. It's like the mother bird, finding her nest empty.