WTF are they doing?
Being Lazy. Reading up on all of the post series books must be a bitch. Or they reckon only a few hardcore nerds read those, so ignoring them won’t hurt their customer numbers.
The sad thing is incorporating the developments from the respective relaunches wouldn't have cost them anything really. A quick Google search offers plenty of summaries, which is all they would have needed to keep it consistent. Who knows they might have even gotten some of the authors to do some consulting for them for free, considering how faithful some of them are to their work.