I think it's just journalistic safety against a government committing genocide and willing to go to any lengths to conceal that genocide, including defamation lawsuits. Israel is doing everything in their power to make it all but impossible to factually report on the humanitarian crisis they are creating in Gaza. If Al-Jazeera didn't publish this story, it may not be published at all. So, I think they're being cautious while they continue their very important work. Also, the IDF has murdered several Al-Jazeera reporters of late, so AJ may also be motivated by a fear to keep their reporters alive