I mean Palestinians (including Hamas, believe it or not) are currently working towards (or would like to, but the other side is a genocidal state that has a vested interest in maintaining the status quo) a two-state solution, but the fact that one state encompassing all of Palestine is no secret. The article you linked uses that as a proof that the Oslo process was doomed from the start. That's unadulterated bullshit. The Oslo peace process was the closest the conflict ever came to ending, until a Zionist terrorist assassinated Rabin. There's just no way that can be blamed on the Palestinian side.