Hmmm, so then what are the golden-age games all the with great writing again?.** It seems like we're having trouble listing a dozen... not sure if people can even agree on half a dozen.
Betrayal at Krondor was well above average, but all told the writing didn't impress me much as a forgiving kid, let alone as an adult. I remember the various Ultimas far better for the world building than the actual writing, which was mostly adequate. Lone Wolf books are 90% fiction novel, 10% game, so I wouldn't really compare them to CRPGs, they're closer to CYOA books with some very lite RPG elements. Legacy of Kain? I've only played the first one (and it was damn good) but it felt more like Zelda built up w/ some ACRPG elements than a proper CRPG. Arcanum was an absolute freak that compares fairly well to other titles from its time, but would probably get much harsher reviews if released today. I recall that the hardcore CPRG crowd mostly spit on it at release, didn't buy it, and maybe expressed some regret later on. It's troubling that the examples cited in the OP's argument don't really support his thesis all that strongly.
Can someone cite a two year period from PC gaming (esp. CRPG) history that beats out 2015-16? I not arguing that it's impossible to do so, but having been in this mess since the mid-80s I feel that the market has profoundly improved in recent years, very likely (in part) due to forums like this one. But to continue to crow that modern CRPGs are crap, well... compare and contrast the last two years to any in CRPG history and I think the situation is looking pretty good. The big struggle now is a creative one, making good games with small dedicated teams, getting the word out, and then buying the games when they're actually looking good.
Standing on an internet podium and spewing well constructed bile was an effective tactic during yesterday's battles, but it is a largely waste of time and energy today. Except when people are making fun of obviously pretentious stuff like "Undertail" -- gotta hope that delightful brand of contempt always finds a home here, if only for lulz.
** Star Control 2, duh