Edited ending of Chapter 50 of Little Choices. · 7:14am Mar 30th, 2018
Looking back, the Sonic Rainboom at the end of 'Chapter 50: Making Up For Her Mistakes' made more sense in the originally planned version of the scene. In that version, it was daytime and Rainbow's mission was significantly more reckless and not at all an effort to be stealthy. Plus, Twilight didn't go with her in the planned version of the scene.
But thanks to my writing style, things turned out a bit differently than originally planned, so the Rainboom no longer makes any degree of sense in the context of the scene, so I went back and re-did the last few paragraphs to reflect this.
tl;dr: The Rainboom was dumb, so I got rid of it.
I didn't say anything, but the rainboom did feel out of place. And considering that the doctor suggested to hold off from flying, a sonic rainboom would've been a bad idea.
And that's not even taking into consideration the attention it would draw.