Does that even make sense to you? So there's a peace process ,an Israeli politician (in opposition) goes to the Temple Mount (and while provocative, why shouldn't he? It's a public space.). And the Palestinians say, well, that's it, let's start a second intifada, blow up the entire peace process, give up on our dreams of our state, because someone visited the temple mount? It doesn't make sense because it's not the reason, it's an excuse. They'd planned and prepared for it
To be honest I can understand why his actions sparked riots and then the riots escalated. I very much doubt it was planned. What Arafat thought about it I don’t know.
There’s a useful summary of the history of Palestine (as it’s referred to) by the UN which mentions that the second infiada was triggered by Sharon (or at least that seems to be the implication)
https://www.un.org/unispal/history/
It’s strange, but I get the impression neither side were ready to give up the fight. The likes of Arafat and Sharon had been fighting their whole lives perhaps it was all they knew.