Kiryu-Chan 
World's Okayest User
I mean, it's really obvious the switch from Trophies to Spirits was a cost cutting/time-saving measure and nothing more. Instead of designing new trophies from the ground up for every character and franchise featured, Nintendo found it much much easier to just slap a PNG and call it a day. Bear in mind, I don't think this approach is lazy because ultimate they probably felt the trophies were becoming more taxing than they thought they were worth. Though I really wish they still gave them descriptions because that was a lot of the fun to read up on trophies