From your link we see this which destroys your argument
Despite President Clinton's optimism, the events of 1998 did not entirely resolve the controversy of the Charter. A June 1999 report by the Palestinian Authority's Ministry of Information on the status of the Charter made no mention of the 1998 events and leading Palestinians continue to state that the Charter has not yet been amended
In March 2011 the PLO-EC Chairman asked the PLO-EC to convene the PLO Constitution Committee, either in Amman or in Cairo, and advised that the committee should draw up amendments to the PLO charter by September 31, when it's is scheduled that the state-building project of the PNA Prime Minister is to be completed.
SO YOU ARE CAUGHT LYING AGAIN LIKE A GOOD LITTLE ISLAMONAZI
In 2001 the first draft of a constitution authorized by the PLO's Central Committee, calling for a respect for borders, human and civil rights as defined under international law appeared.[18]
Regarding PLO reform
...
The PLO Constitutional Committee first convened in 2005, but hasn't met since 2006 and the provisions for the inclusion of Hamas and Islamic Jihad in the PLO are not yet adopted.[23]
In March 2011 the PLO-EC Chairman asked the PLO-EC to convene the PLO Constitution Committee, either in Amman or in Cairo, and advised that the committee should draw up amendments to the PLO charter by September 31, when it's is scheduled that the state-building project of the PNA Prime Minister is to be completed.[23][24]
Israeli views
Although the PNC met in Gaza on 24 April 1996, it did NOT revoke or change the covenant, but only issued a statement saying that it had become aged, and that an undefined part of it would be rewritten at an undetermined date in the future. While the English language press release stated that the PLO Covenant was "hereby amended", the Arabic version of Yassir Arafat's letter on this declaration stated:
It has been decided upon: 1. Changing the Palestine National Charter by canceling the articles that are contrary to the letters exchanged between the PLO and the Government of Israel, on 9 and 10 September 1993. 2. The PNC will appoint a legal committee with the task of redrafting the National Charter. The Charter will be presented to the first meeting of the Central Council.
The New York Times and others [25][26] quoted similarly language (the ambiguous phrase decides to amend is quoted instead of herby amended):
Formally, the resolution adopted by the council consisted of two simple clauses. The first declared that the council "decides to amend the Palestinian National Covenant by canceling clauses which contradict the letters exchanged between the P.L.O. and the Israeli Government." The second ordered a new charter to be drafted within six months.[27]
"Peace Watch", an Israeli organization declaring itself to be "an apolitical, independent Israeli organization monitoring bilateral compliance with the Israel-PLO accords"[28] issued the following statement:
The decision fails to meet the obligations laid out in the Oslo accords in two respects.
First, the actual amendment of the Covenant has been left for a Future date.
As of now, the old Covenant, in its original form, remains the governing document of the PLO, and will continue in this status until the amendments are actually approved... There is a sharp difference between calling for something to change and actually implementing the changes. Second, the decision does not specify which clauses will be amended.
UN inquiry says Israel must end settlements - Page 4