Depending on the color choices, it may be more difficult for colorblind folks. Choosing to print or display it is a choice that affects the blind.
Assigning neutrality or bias without viewer of interaction is a category error. It is not an intrinsic property of the graph despite our wanting to simplify the world this way. It's like saying chocolate is intrinsically the best candy when what's being said is 'my relationship to chocolate is that it's my favorite.'