That's what you SAY, but a google search doesn't seem to bear out the claim that that's what the literature has been saying. At least not an "ages old" significant part of the literature. :)
Plus, remembering back to my old philosophy days in college, I would disagree that divine silence is a necessary part of the problem of evil. Those who pose the problem would be satisfied with a God who prevented all evil without anyone knowing about it. So, while you can make a connection, there is no necessary connection.