" If Direct File Access is implemented in BIAB, editing will still occur after the file is generated. "

What file ? there is no file created, it is just source reference data that non destructive editing is applied to during playback.

"inaccurate statements being made"

same as you said I was creating files in Reaper, NO FILES CREATED.
"A RealTrack must be rendered into an audio file (WAV, WMA, MP3, MP4) to be used in a DAW and the same is true for a RealTrack generated on a Utility Track and the same is true for Reaper."