Neither Israel nor the US took credit for the strike that hit the school so this could be a matter of genuinely not knowing which of the two was responsible.
The US military’s Central Command (Centcom) said it was looking into reports of the incident, while Israel’s military said it was “not aware” of any IDF operations in the area.
The graphs in the paper show the temperature 1 km away from the data center being 8°C higher and attribute that to heat emitted by the data center. That should start the alarm bells that something isn’t right with this paper.
Here’s a post going into the problems with it;
https://blog.andymasley.com/p/data-centers-heat-exhaust-is-not?open=false#§my-core-claim-this-is-literally-just-measuring-hot-surfaces-of-new-buildings-and-the-soil-and-land-around-those-new-buildings-probably-hasnt-changed-temperature-at-all