So when was their time? Everything Looking Glass, Arkane, and even Irrational Games seems to be a financial failure despite endless acclaim by fans, and despite the technological advances, they can't seem to make it work.
When I look at the failure of games like Titanfall 2, I see how they were fucked by management. I wasn't into PC gaming until after Half-Life 2 was out so I can't comment on Looking Glass, but Arkane seem to victims of their own incompetence. As mentioned, Prey and Dishonored are neat and all, but they struggle to reach above the standard of "okay". Dishonored 2 was a mess on release, while Deathloop and Redfall are notoriously bad despite them being ideas I should love.
When I went back to play System Shock 2, I fucked myself over during character creation by making a psi character. Making a gun character didn't help as the guns would dissolve after a magazine or two. When I was told that I have to edit an ini file so the guns are functional, I threw in the towel.