This is how I have always thought of it. According to starwars.wikia.com/wiki/Hyperspace There have been several instances where ships have jumped into and out of a planetary atmosphere. If you watch the sources you see little to no atmospheric disturbance meaning the air is not forced out of way of a fast moving object like atmospheric entry vehicles(https://en.wikipedia.org/wiki/Atmospheric_entry). I always assumed this must because the transition to hyperspace (A different dimension) must cause the object to be mostly intangible, due to the nature of exiting physical space. TLJ proved this preconception was wrong, when Vice Admiral Amilyn Holdo engaged the hyperdrive of the last command ship directly into the path of the First Order Mega-class Star Destroyer, the Supremacy, heavily damaging it.
So I was wondering if someone could answer how this maneuver is possible or why exiting/entering hyperspace in side an atmosphere does not result in very high atmospheric disturbance if not nuclear fusion.
Willing to accept speculations but if possible please cite your "canon" sources.
Edit: Another example where trans-hyperspace passes through objects is Hera Syndulla while fleeing Lothal in a U-wing, jumped to hyperspace right in front of an Imperial construction module and flew through the hangar, successfully getting out the other side and making the jump."[Star Wars Rebels – "Kindred]