Product review (5 stars): Pulled one of the rear springs out to drop the spring pressure... works fine now
This should be voted the best review so that anyone else going through this issue sees this for sure.  The reason these fail is that the spring plunger pressure pushing the drawer out exceeds the ability of the latch to keep it closed.  Here is the cheapest fix that works fine:  Unscrew and remove one of the spring plungers in the back of the cabinet so the latch won't have to work as hard to stay closed.  The cabinet will still spring open fine and you won't have to replace anything.  I removed the right spring but removing the left one will work just as well.  It lowers the spring pressure by half so the latch will now keep the door closed as intended but the drawer still springs opens more than satisfactorly.