On the one hand, since the original game is always fullscreen and never leaves black borders around the level area, one can argue that displaying more of the playing area to avoid leaving black borders is actually more classic. On the other hand, the level data allows the level author to set the initial display position of the level, and for a small portion of levels, it might be preferable to the level author if they have control over exactly which portion of the level is initially in view regardless of screen configuration, being that the initial view is sort of a first impression. (I'll grant you it's a fairly weak argument, just throwing it out there.)