Updating regions with setDataFromArray()

Question

Hey people,
I have a Spry Region "players" that has a Spry.Data.DataSet "dsPlayers"  that is EMPTY onload
on an unrelated  event I "add" rows to the dataset by first acquring any array of rows currently in the dataset and adding a new row on to it.
I then setDataFromArray(rows) with the new array of rows. My problem is that the spry:region DOES NOT update and list out the data.
here is the code
var dsPlayers = new Spry.Data.DataSet();
//........ on event function { ...
     var rows = dsPlayers.getData();
     var player = {ds_RowID: rows.length, fbid: row['id'], passes:0, defense:0, scored:0, shots:0,  played:0 };
     rows.push(player);
dsPlayers.setDataFromArray(rows);
inside a div spry:region="dsPlayers" .................
<table spry:state="ready" class="fbgreybox">
      <thead>
        <tr>
          <!--<th>Jersey No</th>-->
          <th>Player Name</th>
          <th>Time Played</th>
          <th>Scored</th>
          <th>Passess</th>
           <th>Passes Intercepted</th>
          <th>Shots at Goal</th>
        </tr>
      </thead>
      <tbody>
        <tr spry:repeat="dsPlayers">
          <!--<td>{ds_RowNumberPlus1}</td>-->
          <td><img src="http://graph.facebook.com/{fbid}/picture?type=small"/> <!--{function::getPlayerNameById}--></td>
          <td align="center" valign="middle">{played}</td>
          <td align="center" valign="middle">{scored}</td>
          <td align="center" valign="middle">{passes}</td>
          <td align="center" valign="middle">{defense}</td>
          <td align="center" valign="middle">{shots}</td>
        </tr>
      </tbody>
    </table>
Note that in debugging I see the dataset recieving the data and the regions notification events go off.

Answer 1

the definition for setDataFromArray() is
Replaces the data inside the data set with the row data in the specified array. If the row data does not have a ds_RowID column defined, it will automatically create one and assign an ID that is the equivalent of the row's index within the array.
Developers should be aware that the data set takes ownership of the objects within the array that is passed in. That is, it uses those objects as its row object internally. It does not make a copy of the objects.
By default, this function will trigger a synchronous "onPreLoad" notification, followed by asynchronous "onPostLoad" and "onDataChanged" notifications that are made sometime *after* the function has exited. If developers want these notifications to happen synchronously before the function exits, they can pass a true for the optional 2nd argument to the function. Developers should be aware that synchronous notifications could cause potential notification cycles in complex situations where data sets and regions are used together, so use sync notifications with caution.
Are you guys NOT suggesting that even though the notifications happen after they DON'T affect the regions?