That is factually incorrect.
To quote the relevant press release:
"In order to give maximum creative freedom to the filmmakers and also preserve an element of surprise and discovery for the audience, Star Wars Episodes VII-IX will not tell the same story told in the post-Return of the Jedi Expanded Universe. While the universe that readers knew is changing, it is not being discarded. Creators of new Star Wars entertainment have full access to the rich content of the Expanded Universe."
So, no, they are not going to completely ignore the EU. They may use some parts of it, and not use others. Elements of the EU are stated as coming up in "Star Wars Rebels".
Which all amounts to "we are not strictly bound by" does not mean "we are completely ignoring".