Actually that article was posted on June 7. It's now June 16. It's a week old.
As for comparing E-Tools to Chargen Demo, it's different. You cannot create monster PC or NPC with Chargen Demo, only the standard PC races. You cannot apply prestige class from DMG with Chargen Demo.
(Although I am aware of unofficial utility to the Chargen Demo that allow such modifications.)
And while E-Tools will provide data from ALL THREE core rulebooks (as opposed to the Chargen Demo that covers the bulk of PH with a smidgen of DMG, namely the magic items and weapons portion to equip your character), I'm sure you can input data such as feats from other sources, including the (appropriately named) splatbooks.