Congratulations on being the first person I know of to come across the glitched room. I used that room as a dev function to access different areas of the game and do party modifications and saving in "unintended" locations. After nearly losing a half day of development to a glitch, I was inspired to redecorate it, leave it accessible via a hidden method, and utilize it to add another possible ending to the game. It is indeed the first step on the path to the game's most secret ending. One not counted among the 4.
