>5e gives you freedom
5e is lazy.

you always had the freedom to do whatever you wanted, id wager the majority of DMs do homebrew worlds.
What 5e does is pump out worthless content thats just rehashed from older edition. Case in point: the eberron book.
Basically a reprint from the 4e one, the entire new "content" was player character options.

But for a DM wanting to run eberron? Nothing new.