"Too much collateral damage"

"A senior American official said “there have been discussions” in the past several days among officials from the United States, Saudi Arabia and the United Arab Emirates, a Saudi partner in the campaign, about ending the bombing. Asked why, the American official, speaking on condition of anonymity, said: “Too much collateral damage.”"  Was the number of women and children killed in Yemen beyond the number agreed upon by the US and its "moderate" allies?