I’m not saying was needed, i’m saying how has been used
Also Ryu beting Necalli and Ryu fighting Akuma have two different meanings
Ryu vs Necalli = an internal struggle, wich ended up into Ryu finding his own path
Ryu vs Akuma (post SFV) = Ryu path vs Akuma path.
Necalli fight was all about the type of power, he rapresented pure energy, a mindless force of nature. If he was an animal was the same thing.
With Akuma will be a duel between martial arts Masters with opposite view on martial arts meaning
The Akuma fight in SFV already show a change in that sense, after that he see Ryu as something “new”, does’nt look at him anymore as somebody to corrupt to create another himself to fight, but accepted to let Ryu do his own thing to perfect that new “pure” style
He (Akuma) accepted the existence of a different point of view and he’s looking forward to crush it with his own, proving his view of martial arts as THE truth
Btw i agree a design like Necalli has been wasted