Hardly a slam, more a gentle prod. The article, in reality an opinion piece, goes on to say:
"It is possible that the aim of the invitation was an attempt by Netanyahu to isolate UN attempts to restart and impose a peace process between Israel and the Palestinians. In reiterating his persistent call for direct negotiations with the Palestinians, Netanyahu has rejected any possible UN plan to unilaterally impose a solution to the conflict, reiterating Israel’s longstanding complaints that the UN is biased against Israel. His biggest concern is that President Obama might allow the UN Security Council to endorse Palestinian statehood at year end without the traditional US veto of such a measure.
The Palestinians have rebuffed Netanyahu’s past offers for such invitations, saying his hard-line position on all core issues made dialogue impossible. Indeed, Netanyahu rejects a settlement freeze, will not uproot settlements, rejects the 1967 borders as the basis for talks and rejects any division of Jerusalem."
Netanyahu’s invitation - Saudi Gazette
So what's the point in accepting such a duplicitous and cynical "offer"? Just Netandyahoo bloviating for the gullable.