the short ramp types were developed because Brifters got huge, in order to house all the shifting clockworks.
Lots of companies supply the OEM market, that is the volume buyer..

You are in LA? and cant find a shop there? Poor Boy, too many choices..

I could go to My LBS and ask them to order stuff they may not have in stock, & the town has just one,
you have hundreds of bike shops in Metro LA.