Another carry-over from GalCiv 3, I believe, is the frustrating ship auto-movement that runs your ships past enemies, and in some cases, directly in the middle of a horde of enemy ships, further expending all of its movement points leaving nothing to escape. (obviously, that ship will soon be destroyed by the horde...)
Now, this could be addressed by manually moving each one of your ships. However, this is overly tedious and unreasonable to expect any player to have to do this.
A simple, "Quality of Life" feature could have been added to address this to have your ships stop when enemies are detected/spotted - leaving the remainder of its movement points available to be used for manual movement.