"Any chance he simply reported what he observed?"
This is a summery of what Kemp "observed"
"I was in Israel for much of the summer 2014 Gaza conflict, specifically from 14 July – 8 August and from 27 August – 5 September. During these periods I met, was briefed by and questioned Israeli political leaders, senior officials and Israel Defence Force (IDF) soldiers from general officer down to private soldier. I spent a considerable amount of this time close to the Gaza border where I also met, was briefed by, questioned and observed many IDF officers and soldiers immediately before and after they had been in combat.

I was in Israel also for much of the Gaza conflict in 2012. I visited IDF units and held meetings with many IDF officers, government officials and political leaders before and since then. I have been acquainted with the IDF and the Israeli intelligence services for many years, both during and after my military service."

Lorra lorra balance and neutrality there, I would say!!!
The Times of Israel described Kemp as "supportive" - he certanly chose his informants carefully
Jim Carroll