Question

やさいのようせい

What has happened to him? と
What happened to him?の違いについて

あるサイトに載ってたものなんですが、下の画像の説明が逆だと思うんですが、どうなんでしょうか？
has happenedは過去〜現在までに関することで、happenedはただの過去形なので、下の説明文が逆だと思いました。

分かる方いたら回答お願いします！

What's happened to him (what
has happened to him) is
present perfect form. lt is often
interchangeable with the past
tense,

What happened to him.

The nuance is that present
perfect is used when talking
about something in the past
that continues up to the
present moment. That is why it
is used here.