It mentions that claim but now there is no evidence provided of it either, yet.
More interesting to me is the news that it wasn't the extraction that created casualties, it was the group somehow getting stuck and the militant counterattack that spurred escalation. While I do not condone the Israeli attitude towards casualties, I don't condone the Hamas attitude towards them either.
No disagreement on the blame that should be assigned to Israel here. But I think we should be holding Hamas to the same standard for holding hostages in populated areas, performing attacks in populated areas, and of course kidnapping in the first place, among other crimes.