I agree, I don't think sending a letter of interest can hurt you, if it's specific (interest in community clinic, interest in recent SOM publication, etc.)... but odds are this will just help your own personal mental health because you're ~doing something~ more than anything else haha, my update was about recent research stuff, so odds are that definitely played a bigger role, however I am also unsure if
@CyrilFiggis has sat on an admissions committee or not because I haven't so I'm just speculating and can make no rock solid recommendation lol