Sir/mam
A beatification happens only when the Pontiff is absolutely sure that the person is in heaven. The reason that this step is in place is to initiate the public cult to the person, since we have a law that requires a second miracle.
This gets a little tricky, because even though we have the law, the popes are not bound by Church laws. They make the laws. They are the Law-Givers. So the law is almost Perfunctary. Most of us often wonder why they even bother making laws for popes, when everyone knows that the pope can change them or dispense with them. I believe that they exist more for the sake of information, as a way of telling the rest of us how the pope will proceed in certain situations. But they are not guarrantees that he will do so.
Therefore, there is no guarrantee and nothing to bind a pope to stretch out the study for the canonization of a person.
In this case, there is a miracle. This creates an imperative on the pope. If he (the pope) accepts that this is truly a miracle and he accepts that the miracle was through the intercession of John Paul II, he has a moral duty, not a legal one, to acknowledge it. That’s what’s happening here. There is a miracle and Pope Benedict cannot hide it. It would be unjust to do so. If he proclaims the miracle, then he is de facto beatifying. He is admitting that God has shown his glory through the prayers of John Paul.
The only way to do what you’re saying would be to pretend that the miracle never happened. That would be a lie. You can’t do that.
Before JPII “brought in the fences to 100 feet”, made the canonization process so easy, and thus could proceed to beatify more people than all the previous popes put together, before that change, there were only two canonized popes in like 600+ years (Pius V & Pius X)!
Compared to Pius V, JPII is a Protestant Martin Luther. Compared to Pius X, JPII is a modernist/progressive and a devastator of the faithful. There is hardly a Catholic left today that lives the faith.
JPII may have not even made it to Purgatory, and if he did, he needs our prayers. and by the way, beatifications are fallible.
To paraphrase St. John Chrysotom: "Most priest are lost and few bishops are saved, not because of what they do, so much as what they fail to do".
JPII is a creation of the media, a media icon, a rock star, just like Obama is today.