That's exactly why these tracks have never been released. Musicians typically record tons of material, then release only their very best performances.
I'm sure if the surviving Beatles had their way, these tracks would never see the light of day.
A concept that must be lost on the joint media/marketing machine...naw, not really. Woohoo, let's make a(nother) buck! The suckers (suitably mind-massaged) are out there...