I really hate the idea of FP+. It does seem like a pain. But, I think it spells something bigger for the industry as a whole.
Disney is realizing (and Universal too, but not at the same rate) that theme parks are losing their ability to attract middle-class visitors. The middle-class doesn't have the vacation money they used to. Disney managed to do something despicably amazing. They managed to still make the parks accessible to everyone, yet offer the wealthy a distinctly better experience. I mean, sure, the rich have always had the ability to buy better merch, eat better food, and stay in better hotels. But, this is impacting the theme parks at their most fundamental level. Wealthier folks get earlier FP reservations and I imagine they'll soon get more FP reservations.
I don't think this is all bad. I think that the small segment of wealthier individuals are going to see more customized, individual, cooler experiences than would've ever been possible at usual Disney World scale. But, it's definitely a sad passing of theme parks as a equalizer.