This is an interesting topic. Innovation is where the path forward takes a radical course change and progress makes a giant leap ahead. I don't disagree with you about the A6000 being a massive leap forward. It's a little like the Bell X-1, the plane that Chuck Yeager flew to break the sound barrier in 1947. The supersonic planes that have come after the X-1 have long since outpaced its capabilities, but the X-1 was the plane that opened the door to all of the massive advancements that followed.
One thing I think Sony continues to do extremely well is to look to the future rather than cling to the past. I've been in this industry long enough to remember when reps from other companies publicly and privately dismissed mirrorless. As Schopenhauer said (yes, I am brining a 19th century philosopher into a discussion about cameras), "All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident."
I don't have my A6000 anymore, but I I recently got an Alpha 7CR. It's a very different camera starting with being full-frame, but like an F-16 shares DNA with the Bell X-1, the A7CR's lineage can be traced back to the A6000.