simple answer : recreation from actions and stuff>
long aswer : trying to be a good recreation from actions and stuff like : immersive textures improved fog alot of animations player or mob animations even boats or chest new textures vanilla like and effects and optimized and stable to be perfect for using it as defult modpack , and offering a long term support from updates and relying on textures insted of mods to be easy to update and fixing , lastly having a high quality look.
here is also a trailer
. animations
.stability
.long term support
.improvments over time
.3d stuff
.optimization
.bug fixing over time
yes ofc even easier than the vanilla minecraft and still looking BETTER.
as said before its going to be long term support of updates , fixes and improvments.