I'm guessing that most of those who preferred the old FP (paper FP's at kiosks) were always early morning / rope drop people. The brilliance of FP+ was that it was possible to arrive at the parks later in the day and still be able to take advantage of the FP+ system. That had to be a plus for Disney as well as guests, to spread out the capacity throughout the day.
It wasn't required to book FP+ long ahead of time as some people insist (30 or 60 days in advance). We are spontaneous visitors and I was often able to grab my three FP+ a day or two before a visit, or even same day, with the exception of the newest rides or headliners. With the old FP, because we prefer relaxed mornings and entering the parks later in the day, paper FPs were always gone when we arrived. With FP+ we could schedule three late afternoon / early evening rides and have a pleasant few hours in the park.
It wasn't required to book FP+ long ahead of time as some people insist (30 or 60 days in advance). We are spontaneous visitors and I was often able to grab my three FP+ a day or two before a visit, or even same day, with the exception of the newest rides or headliners. With the old FP, because we prefer relaxed mornings and entering the parks later in the day, paper FPs were always gone when we arrived. With FP+ we could schedule three late afternoon / early evening rides and have a pleasant few hours in the park.