Talk:Toaru Majutsu no Index:NT Volume19 Preface

Is there any reason this preface has its own page, rather than being placed before the header on the Prologue page?

It seems strange that the preface for this volume is handled differently than it is for the rest of the volumes in the series. From a strictly formatting perspective, is there anything in the raws that would indicate this volume's should be handled differently? And if there isn't, can this volume be changed to match with the rest?