Either way that
Pineal gland is a sweet little dealio that does have rods & cones for various reasons and there fore can be considered a "3rd eye". People always look for "proof" of things like the
chakras and their tangle link to this physical reality, and there it is. A "3rd eye"(even though the
Pituitary gland is susposed to be associated with the 3rd eye or
6th chakra) that symbolically has been referred to as a "pine cone" in ancient history; and it's what David used to show that all of these freaky hat wearing people get much of there "higher information"; from their own "channels"; which tend to involve some kind "altered state"; that has strong correlations and functional relations to these states(like melatonin!

) . But I guess if you want argue the semantics of the gland's physical appearance, then by all means...argue away.
I still don't think David deliberately tried to mislead (aka "
lie")...or would you say he may have made a mistake? Unless you have proof of a lie that is...