Can someone who knows explain why Wells Fargo is inventing a new API rather than using OFX? Is OFX deficient?
Banks move at speeds that make most glaciers jealous and Intuit has some financial incentives to keep the spec complicated so it's really no surprise we've been stuck with it so long.
A new open standard would have been nice, but I wouldn't hold my breath on other banks implementing it, so I can't really blame WF for going it alone here.