[syjer]

From what I know, JSF is used mostly for small to medium intranet application in the context of big enterprises.

I'm quite biased here, but the big seal of approval as the official java enterprise web framework makes it often imposed by the upper layer of the enterprise than a willing choice by the developers.

Additionally, if the enterprise is licensing a lot of oracle products, it's not surprising if they have a ADF (adf is a jsf implementation and component library) license with jdeveloper, which is trumpeted as the successor of oracle forms.