[{quoted}](name=Happy Jack,realm=NA,application-id=3ErqAdtq,discussion-id=X5LBpjgJ,comment-id=0000000000000000,timestamp=2016-01-28T00:28:39.292+0000)
You assume too much.
How does the player know where they "should" be placed when a ranking does not coincide with MMR?
A player in any Tier can have an MMR several divisions lower than what thier Rank represents.
Example: Player ends season at Gold 4. Really though, their MMR is Silver 1/2 and the reset puts them in Bronze 1/2. Completely fair.
Placements are not based on Rank, it's MMR. Placement matches don't move the needle that much after the reset.
It doesn't go along with it perfectly, but it does follow it. It's certainly possible for a bronze player to have a higher MMR than a plat player, but it's extremely unlikely.
For your example, the starting point is silver 4, not bronze 5. Going down to bronze from silver 1/2 is fine enough if the player goes fairly negative in placement matches. It's not OK if the player goes slightly negative, even, or positive.