My whole career has been in enterprise software, and I've found that the actual end users like the same sorts of things you find in well-designed consumer apps,

My whole career has been in enterprise software, and I've found that the actual end users like the same sorts of things you find in well-designed consumer apps, because that's what they're used to. I think when you say "UI animations seen on mobile apps are better, e.g. subtle animations used in Apple's music app improve usability." that really nails it - nobody wants overly artsy animations (in consumer or B2B software, in my experience), but subtle use of animation can make the product feel more responsive in a way that improves the user's perception of it.