Essentials didn’t give any classes, it gave subclasses, because it was a collection of supplement books for 4th edition, not a new edition with a new set of base classes.
No, Essentials reprinted the core rules, was the products I gave picture evidence for, and changed the core class list to remove the warlord and add the druid. It was also never listed as a supplement or "used with". Those were different subclasses, not additional subclasses.
Until you show me something that demonstrates it was actually a supplement instead of an updated edition (like going from 1e to 2e) then I have to disagree.