FP+ is not a "modification to FastPass". You can not compare it that way. The only way to properly look at FP+ is to compare it "no FP at all".
Why? Because Disney looked at FP- and said "this isn't right, some people are riding the headliners 2-4 times a day with no wait, while other people are standing in line for 2 hours just to ride once".
Therefore FP- was going to be eliminated, regardless of what system took it's place.
The biggest complaint about FP+ that I read is: "I cannot do as many attractions with FP+ as I did with FP- before". However the FP+ system was designed specifically so that you cannot "go commando" like you used to, since this was basically at the expense of other visitors.
Compare it to a theme park which has NO system for by-passing lines, and it's a pretty decent system.
Why? Because Disney looked at FP- and said "this isn't right, some people are riding the headliners 2-4 times a day with no wait, while other people are standing in line for 2 hours just to ride once".
Therefore FP- was going to be eliminated, regardless of what system took it's place.
The biggest complaint about FP+ that I read is: "I cannot do as many attractions with FP+ as I did with FP- before". However the FP+ system was designed specifically so that you cannot "go commando" like you used to, since this was basically at the expense of other visitors.
Compare it to a theme park which has NO system for by-passing lines, and it's a pretty decent system.

They call it FastPass+.