So what the Warden, Paladin, Swordmage, and Battlemind didn't exist in 4E now or what? They all had their unique defender mechanics that made them distinct and still good. Or is this the part of 5E transition where we can't say 4E had nice things at all?
The stated initial goal of 5e is to cover all the classes that have been printed in the initial core books of each game edition (with the exception of the race classes like Hobbit, Dwarf, and Elf ~ And yes, I know they are now called Halflings but that came after the Tolkein lawsuit).
That makes the Paladin in and Warden and Swordmage out.
Personally, the Warden is one of the best of the new classes to come along in a while and like the class but I know that I will likely have to wait for it to see it returned to the game.
The article was focused on fighters because of the original question was a follow up to a question from the DDXP seminar. That does not preclude interest in the other classes. It was just the focus of the answer as phrased by the initial question.
The article mentioned 4e powers as a module and the fighter 'aura' as a main schtick that other classes might like to have access to using.
This is actually pointing out things that the designers like of the 4e system but wondering on where to put these things.
Powers or Feats could be modules that add to a fighters abilities but in the lowest level of the game they won't be wanted. This leaves the need for 'something' to give the Fighter a unique flavour that attracts players.
Marking is seen as something that not only the Fighter but possibly the Paladin or Warlord might like to do (not sure which archetypes are being referred in the article as others liking to borrow this mechanic). Marking might also be broadened to have a connection with the Strikers or their new incarnation for things like the Warlock Curse.
It is still too soon to tell.
I did see a game report by roleplayingtips.com which discussed their playtest of the rules as sent to them.
Character creation took 1 hr.
The rules were described as still being bare bones and raw.
I think accusations can wait for more information to come out from playtests and to see how those playtests form the next round of the rules cycle of development.