Yeah, the shuttle has very small movable surfaces, and rockets to enable it to change it’s trajectory. A much bigger trajectory change can occur when a alrge part of *something* breaks off!
There are plenty of mysteries win the universe without creating them.
There is a big difference between what we know, what we want to know, and what we can ever know.
If you want some *speculation*....here’s some..... Let’s see...NK rocket rails in 3rd stage. US has recently tested high altitude intercept of ballistic missiles over the pacific.....NK is *really* mad about the failure of the rocket (instead of embarrassed). Hmmmmmm????