The offers would have led to SOMETHING BETTER. It was ridiculously short-sighted for the PA to refuse them all.
I'm the most pro-Israel person I know and I recognize that Yasir Arafat's "Plan of Phases" would have worked - sign any agreement and accept any position in order to gain a stronger position for making future demands. Israel would have said "These are final status agreements," the PA would have said "Okay," then after 10 years of building resources and allies as a small actual state, they could have started angrily demanding more. "What do you mean, final status? I never agreed to that. It's not final until our NEW demands are met." Israel would have been left like Ned Stark confronting Cersei Lannister with a piece of paper. A world full of people who believe the most insane made-up jive about Israel would have been happy to disregard a piece of paper with the words "FINAL STATUS" on it.
Arafat didn't have the nerve to follow through on his own idea - he was sure he'd be assassinated for even seeming to go along with concessions to Israel, and maybe he would have. Instead the same 10 years passed, and became 24 years, and they have nothing to show for it. Except for killing a bunch of Jews.