It's known. The logical fallacy is accurate re "miles driven" versus "total possible miles". Tesla's statisticians cannot possibly be unaware of this if they have anything beyond a middle school education, yet they repeatedly continue to tout this stat without so much as a footnote.

I realize that may still, to some, be "suspect", not "known", so yes, if you're asking, "Is there public or leaked internal documentation saying 'we realize these stats are misleading and don't care'", then no, there's not.