There is your answer. In the beginning, board games were composed primarily of games which tested the strategic ability of players. The prototypes to Chess and so forth. Then you had real Chess and other games, which tested only the ability to play. In time, games became more complicated. Where board games like Chess shifted into ones like Monopoly, to become more casual, they also expanded into more complicated games. War games and the like, generally of a historical basis.
Human beings are storytellers. It is our nature to tell stories. If we did not, we would not look to learn about the world around us, have a multitude of religions, or properly detail events which had transpired. We are the only animal truly capable of doing this. Ants and the like can bring back information to simulate this, but one ant cannot simply go back and say "Hey, there is food here, I saw a dead squirrel, let us go eat it". Humans alone can do this. So when we play games, we do exactly that. A particularly exciting thing happens, it is made memorable.
So table-top gaming began to shift. First, there was the addition of fantasy elements into what was once a historical genre. Then there was the revolutionary decision - a game where you made an individual character, rather than controlling entire units. With this, the win-lose scenario stopped. You simply played the role of a person. RPGs began to branch from there. Some games focused on the game itself, wishing to be as realistic as possible. Others focused on narrative, making the players into heroes. Others were simply adaptable, changing as was desired by the DM.
Video games have had a similar evolution, moving from games like Pong, to ones like Space Invaders or Gauntlet from the arcades, to the various genres today. There was constant innovation within the world of gaming to get to that point. The problem is that so few people today have the creativity to continue that innovation, while there are many people who wish to tell a story, but are not adept enough at it to do so in film or novels. So they resort instead to telling it within video games, because the standard is lower for what people expect out of writing quality. The highlight of what is meant to be a game becomes a shitty story of lower quality than the average mass-produced d20 Module. And you end up with The Order: 1886 or The Last of Us as the result.
There's also the other side: The games which went in the Monopoly direction, become more casual so others can play them. It's from those games that you wind up with Fallout 4 and the rest of the shit which plagues today.
In essence: gaming evolved as table-top did. However, as it is a different medium dependent upon technology rather than pure human imagination, its evolution has simply made it inferior.
