And no, it's not realistic, look at real space photography.
But that's the point. Space photography is not realistic, at all. Space photography is extremely long exposures, stacking, light curve processing, de-noising, applying of selective filters, all to make us able to see (and study) stuff that would be all but invisible to our rather limited naked eyes. Space from an extremely dark place, or from space (sorry) is an incredible sight of a sea of stars and a very apparent, yet subtle band of Milky Way, but the colourful and overbright nebulas, the smatterings of very differently coloured stars, that galactic plane so bright it almost blinds you, that's all stuff of either heavily processed photography, or fantasy space games.
As it is currently, in the empty patches Elite's space looks a lot more like actual space that it did before. That is not to say it's better that way, it's still a videogame, I'm perfectly fine with overbright, saturated but visually interesting fantasy space as well.