I find myself way more often in a situation where the explorer is not indicating to me what the currently active file is or it indicates 2 things as being selected and focused. Now that I think about it I think this is what happens:

• I click on a file to open it
• I click on a folder to expand it
• I jump to another editor

Now I can be in two states:

• either I get the currently active file not as selected
• or I see the folder and the file as being selected which imho is not very useful

I think in the old explorer we always cleared focus when we revealed the active file to ensure that only the file that is active shows selected/focused in the explorer and I very much liked that behavior.

Proof: