Well, that was my initial assessment
About sticking to canon, I'm actually surprised they have taken as much consideration for the original EU as they have, especially considering the new post RotJ movies are about to nuke the whole EU placed at that timeline
I wonder if Karen Travis wants to put her foot in her mouth now that she has seen the outcome of the Mandalore arc. Dave Filoni has proven how much of a fan he is by not trampling all over the EU. He and the entire studio have really helped to fill in a lot of the gaps and retcon information that has made the entire franchise more solid.
They say a picture is worth a thousand words. Well Dave, you have given us trillions of volumes of lore to this great series, and Karen Travis, while she may not admit it was probably pretty impressed how you handled her material.