Not to mention he's young as well. If you compare him to Tomoya's dad and Kotomi's godfather, the difference in age/appearance is quite large. The only person that comes to mind who's about Akio's age is Fuko's sister's fiance. In that sense, I think both couples are young, not just Sanae.

In the last episode, they introduced all the family business and stuff. I guess we'll be having a Tomoya arc for now. If there is indeed a time skip, which I also think is likely, Fuko will probably be out of hospital. It was something I was looking forward to, but after they've made all those "Fuko is here" moments, any emotional impact will probably be gone.