1) They would encourage a delusion of power among the settler wing, and embolden them. 2) They reduce Israel's standing in the eyes of Jews and others outside Israel. Articles like this provide both of those negatives, regardless what occurred.
U.S. says it killed 10 AQAP Islamist militants in four air strikes in Yemen since April 23 (Reuters)
from the article: Mossad killing of terror chiefs has little impact on Israel-Hamas war