The initial investment is still a bit higher than traditional SSR.
I think isomorphic generated pages are on the rise, but the learn curve to get there and understand that is a bit tough. I think what nuxt does: a mix of SSR and static generated will be highly on demand for its ease of use, once you grasp it, control via one language/framework.
My stack right now is strapi/nuxt.
Or for documentation it is vuepress.