Yes they should stop focusing on the graphics for a while they've done well enough, in some games they're going above and beyond and entering the uncanny valley where gamers expect real world rules to apply to their games and this is causing conflicts in the mind of the gamers themselves like, " Why can't I go into this store?" or " I can shoot glass out in real life, why isn't this game letting me!" both of these problems are our brains applying real world perimeters that the designers didn't intend to have you can't shoot that window out because they didn't design it for you to do that, you can't go to that store because it was only made to be a pretty prop.
So far the more realistic games are going for the dress the pig up really nicely and not focusing on making the pig into a swan or something more beautiful in a beautiful frilly dress ie they're using the games high end graphics to cover up poor level design, poor writing, poor plots, poor characters they feel so long as it is pretty no one will care about the crap underneath and that's not always true.
I also feel another reason for them to stop where they are graphics wise is so they can improve game mechanics, concepts, and stories being told. The game play and world now need to catch up with the graphics so the game is more fulfilling.
So far the more realistic games are going for the dress the pig up really nicely and not focusing on making the pig into a swan or something more beautiful in a beautiful frilly dress ie they're using the games high end graphics to cover up poor level design, poor writing, poor plots, poor characters they feel so long as it is pretty no one will care about the crap underneath and that's not always true.
I also feel another reason for them to stop where they are graphics wise is so they can improve game mechanics, concepts, and stories being told. The game play and world now need to catch up with the graphics so the game is more fulfilling.