Israel and SA were way more than ok with Soleimani being killed and not because he was just a shiite. he was one of the most critical Iranian leaders in terms of organizing their actions beyond Iran's borders and Iran is both Israel and SA's number one regional rival. He was widely cited before his death as Iran's architect of its regional power

SA and Israel considered assassinating him way before the US did: https://www.nytimes.com/2018/11/11/world/middleeast/saudi-iran-assassinations-mohammed-bin-salman.html