In my observation of newly introduced irises for some years it seems like hybridizers are trying to achieve wider falls that are more rounded and do not drop straight down from the bloom. That is really evident in the smaller dwarf forms. When the little irises are near the ground the flaring falls make the bloom easier to enjoy and photograph. And if an iris bloom has ruffled edges or an edge with a distinctive pattern or contrasting color it is easier to enjoy if the falls flare out.
I like both but I am a bit partial to the older forms. smiles
