OK, if standardising your tables more comprehensively is not what you want then you can just set the alignment without restyling.
Code:
Sub TablesResizeAll()
Dim oTbl As Table
For Each oTbl In ActiveDocument.Tables
oTbl.AutoFitBehavior wdAutoFitFixed
oTbl.PreferredWidthType = wdPreferredWidthPoints
oTbl.PreferredWidth = InchesToPoints(7.2)
oTbl.Rows.Alignment = wdAlignRowLeft
oTbl.Rows.LeftIndent = InchesToPoints(0.3)
Next oTbl
End Sub