Avoid now NPCs interdiction is a problem ... lost all interdiction happened on me yesterday ... and yes, I ofc followed escape vector. On ED is much more posts about this, so it looks like a real change which may/may not be changed again.
NPCs now scan you in SC ... 1st time happened to me that system authority vessel scanned me in SC and 2 times interdicted me on my way to base (outpost!) ... in the end I needed to pay 26k fine (with 200K profit from 2 missions ...). But there for sure was some damage to rep.
Your own interdiction it seems is now much more affected by Interdictor lvl ... higher lvl = much better interdiction chance.
... Could be that SC travel while smuggle will now need very different approach