Why DON’T you like Eberron?

[Batcathat]

As long as by impacting the world you mean that it doesn't enter the everyday lives of commoners, sure.

Yeah, pretty much. I guess I mostly just find it boring world-building to include something as monumental as magic and then not have it change society in very meaningful ways most of the time, instead just having it as some pseudo-medieval (or pseudo- some other time period, if you want to mix things up) setting where heroes and villains occasionally use magic. Having magic be super-rare isn't exactly exciting, but at least it sort of justifies why it doesn't affect the world much.