One of these days I’m gonna have to sit down and make a spreadsheet of the spells the classes get in these UAs compared to their classic 5e spell lists, cause I’m in the same boat, not really clear on what they’re gaining or losing. I will say, this new method is going to make spell preparation even more of a PITA because you don’t just have a handy dandy list of the spells your character can learn. If the revised PHB organizes spells alphabetically, it’s going to be an absolute nightmare to do without digital tools. Though it’s possible that’s a feature not a bug in WotC’s eyes.