As I said, the potential for increased visual intrusion is about the car's new color scheme drawing the attention of guests who are walking towards Tower of Terror, thus damaging Tower of Terror's carefully-crafted approach experience (its "scene 1"). Hopefully this will not be the case, since the car is still set back, the archway is still the same, etc. That’s why I was asking what people who’ve seen it in person think about this aspect.
As for the emotional impact, etc., there is a lot of research and analysis indicating that an important part of Disney’s success has come from the emotional impact of there being fewer visual contradictions than in the outside world. This has been termed “the architecture of reassurance.” One does not have to be consciously aware of / introspective about this—indeed, almost nobody is. There’s a great deal of writing on this topic, from empirical studies on the emotional impacts of cohesive environments, to writing by people within Disney (e.g., Designing Disney by John Hench).