FTFY because it's important not to not lose sight of the fact that knowledge was not "lost" - it was purposely & deliberately jettisoned by the very same suits still here pulling the strings.
OP, why would they stop doing beta when they can trick the players into testing it for free? they just keep dangling that carrot (the race) at the end of a stick and us high end guilds go or the bait year after year. this is working out great for daybreak.
As far as I am aware Prathun, Narlee and Froo left of their own accord. Loosing Prathuns knowledge was a huge loss, I don't think we lost any other major players between TBL and ToL. If we ever lose Absor I'm pretty sure EQ will become a shadow of what it is now.