There's the obvious "Good" guys and the obvious "Bad" guys. There's nothing to really figure out. No shades of grey. It all just seemed like they're hitting you over the head with it instead of leaving you anything to figure out on your own.

Only given a cursory glance are those things true. It's what makes the films so appealing to any age or maturity level. A child is drawn in by "good vs. evil cool space knights and ships." More technically, the use of mythic archetypes to construct characters and concepts makes the audience expect certain traits of those things that the films seem to confirm. An adult knows good and evil aren't that simple and sees the films from a new perspective, if they put some thought in.

Even in the OT, which arguably has fewer "shades of grey," both Yoda and Obi-Wan are proven to have omitted hugely important information to Luke and, going further, effectively have been manipulating him for his entire life. There are interesting moral issues (one man vs. potentially saving the galaxy) inherent in their actions.

Another area rife for re-interpretation is Rebels vs. Empire. At surface-level, the OT presents this conflict in black and white because it's telling the story from the Rebellion's perspective. However, from another angle, what the rebels do amounts to terrorism. Perhaps the Empire brought stability and relative peace to many planets that did not know it before. Defeating the Empire could easily lead to decades of faction warfare and power-vacuum confusion. There are thus likely many in the galaxy who would not support the actions of the Rebellion. Many books (see Lost Stars), etc. explore this idea further.

For all their flaws, the prequels added many more shades of grey to the universe. Again, a cursory glance leads to Jedi=good, Sith=bad. However, a subtext (that's not that far beneath the surface, IMO) running through the entire trilogy is how flawed, arrogant, and ultimately powerless the Jedi are. The order that describes themselves as "keepers of the peace" are generals in a galactic-scale war. Material beyond the films, particularly the TV show The Clone Wars, delve into this idea further, but it can be gleaned just from the films.