That's just not true, I think you're just not keeping up with new releases if that's your real opinion. CRPGs aren't as big as they used to be in the 1990s, but we've had plenty of those recently too, in fact we're in sort of a small renaissance of the genre considering all the new ones coming out.
Off the top of my head there's 40K Rogue Trader, Skald Against the Black Priory, Colony Ship, Solasta, the Pathfinder games, Disco Elysium, The Thaumaturge, Wasteland 3 and they all came out in the last 5 years or so. If you go a little back you have the Pillars of Eternity games, Tyranny, Encased, the Divinity games, Age of Decadence, Torment: Tides of Numenara...
Recently we even got a remake of the first Wizardry and some of the newer japanese ones ported to PC.