I'm someone who started playing 76 from the beta. I disagree with you. I think 76 is now an endless pinata. All they mostly add are stuff to unlock and events every once in a while then they repeat them a million times a year. I wanted more missions and I really wish they would bring back survival mode but make it better balance the pvp make base building work so you actually need to defend your base it would even be cool if you could steal from other players once you cracked open their base it something. I really don't care very much for the endless seasons they decided to go with.
Imo the reason pvp got so little attention is because of how poorly it was implemented. They could do it right and I bet it would be a lot more popular. But you're probably right about me not being their target audience anymore.