It does not make it harder to read, quite the opposite. Writing in third person makes the reading more fluid since the reader can know the feelings, actions and thoughts of every character in the plot. Unlike first-person writing, where the reader only knows the story from a point of view.
Third-person writing makes reading easier to discuss and makes it more challenging and enveloping because there is more than one point of view, more than one thought.
The fact that it can get confusing especially if there is a lot of characters. The reader may get lost with who said what and whose thoughts and actions were whose Hope this helps -Turtles12345