I agree, the bus driver was careless, but how did she drop you off at the wrong stop? Did she skip your stop or did you get off at the wrong one?

Common Sense said it best, "correlation does not equal causation". Generalization by genre (as featured in the Legend) is a failed method to make a correlation, though there most certainly is not one in the first place. That aside, within each genre, individual artists make music of varying degrees of complexity. For example, many could argue that a lot of techno is 4/4 monotony, but some some artists make incredibly complex music e.g. Venetian Snares. You could argue that the apparent 'randomness' (chaos is more appropriate - something that appears random, but is in fact deterministic) would cause your brain to be more active, by necessity, in order to notice the frequent changes in rhythm, tone, tempo - which may be a better type of music for thinking abstractly.