It kinda reminds me of when Saudi Arabia killed the Washington Post writer. Trump blew it off and Biden basically continued the Trump foreign policy.
Seems like normally consequences for acts at the global level are more based on geopolitical considerations than moral considerations. I could imagine if India assassinated a US citizen the intelligence would have just been buried and nobody would have ever heard about it so the US could contribute building up the India relationship to use against China.
From the article's sub headline: ”Palestinians in Beit Hanoun were instructed by Israeli army to leave their homes and head for city centre. Hours later, the city centre was targeted”