Based on your post, you are FP+'s target market and I mean that in a positive way. Disney is truly trying to help you.
Beyond the business objectives, one of the complaints that Disney is
genuinely trying to solve is this: families having to separate because of FP.
FP+ should make WDW vacations
less stressful because guests will have their FP+ selections in hand prior to arrival.
As a tool, FP+ is less physically taxing. However, FP+ is more complicated but at least most of its complexities will be brought home. Guests will face these complexities from the comfort of their residences instead of at the parks.
Of course, Disney could make WDW vacations both less stressful and less complex by completely eliminating FP+/FP but this would not support corporate Disney's business objectives, which includes having guests preplan their entire vacations at WDW prior to arrival so they are less likely to wander off to theme parks that are building new and exciting attractions.