It seemed pretty easy... I don't make a habit of just pulling on things until they just pop off, but the service manager at my trusted body shop was very confident as he pulled it away (carefully) at the top (enough to see underneath). Doesn't have adhesive but rather held in place with friction, and it re-seated fine. We didn't remove it all the way, just enough to verify that it's definitely rusted through underneath and the cause of the leaking. There's 15 years of dirt/dust/debris behind the strip, which I'm sure collected water and allowed it to sit on the rivets.
Seems like if the strip got damaged (or wouldn't stay when reinstalled) there are cheap-ish options to replace: https://www.ebay.com/itm/2000-2001-2...L/143402854578