I think that the series was made "For Fans Only"...that being said; if the new Gen sees those presented "as is"; it's true that Kersh and Marquand are sadly absent...I really liked the show, but they did Irvin Kershner and Richard Marquand a huge disservice. Their names weren't even mentioned. Sure, it's focused on the VFX, but the episodes that focused on ESB and RotJ were filmed to make it seem like George directed everything.
A minor nit to pick, but it did bother me that they appeared to be doing a bit of historical revisionism.