The only big thing in Star Once Fallen would be the reference to Evasion instead of Guard.
The boons, banes, and feats are limit or slightly modified for the Star Once Fallen module b/c it is a learn to play. It is not the full feature set to not overload and ease someone into the system.
The only minor things that might need to be changed for Star Once Fallen are:
Evasion changed to Guard
Battlefield Sentinel to Battlefield Opportunist
(this is probably a special just for the module) Tactical Inspiration
Blinded updated to match the new version
Dispel name changed to Nullify
Intimidated changed to Provoked
Scrying changed to Spying
Stunned remove Advantage 1
Augury name changed to Reading
Levitation changed to Flight
Resistance slight wording modification (though fine as is)
Shapeshift update tiers
Possibly the following, but they are probably that way b/c of Learn to Play
Other than that it looks pretty good. I'd have to look at all the creature stat blocks to make sure they are good as well.