I think I can call myself an AoD veteran (200-300 hours) and I did purchase Colony Ship, but combat was fucking unbearable in the demo and from what I heard all they did was adding "Hero" mode to further mock the players instead of admitting some design issues.
The reaction was exactly the same as with AoD. 85% of players had no problems with combat, 15% thought it was unfair, unplayable, and mean.
https://steamcommunity.com/app/648410/discussions/0/3172198151251693365/?ctp=93
The people in this thread (player-submitted builds) have absolutely no problem with combat and can kill just about anything. Solo or full party, maxed key stats or balanced, melee or ranged.
Anyway, what were your issues with the demo? For the record, a LOT changed since then (it's been more than 2 years), not just the easy mode.