Making such stunning visuals and Voiceover you simply can’t have a comparable content. Even if 5e wasn’t a simplified ruleset there would be no way to implement that number of features and still making such awesome visuals. As a developer you have to make a choice between visuals and content focus.
There is no such choice. Games with high budget can have great visuals AND great gameplay as there are separate teams for each section. If the gameplay is underwhelming, it is their fault, not that they wanted to have great graphics and animation.
Kingmaker only has great gameplay because they only have money for that.
