Companies that don't fall under that rubric are established and have actual money on the line if their software shits the bed. Software that handles actual logistics and transactions can't be treated to lots of LLM updates without some serious problems arising. Startups and B2B ones especially have always been cheap, cut corners, screwed up and apologized later, and most importantly just created hype and fluff to get investment that's rarely spent on building solid foundations. There's not much crap AI is writing for them now, as code or marketing material, that wasn't already just as junky when it was written by humans. That's been the mutually agreed upon game that startups and VC have played since the 90s. LLMs just distill the douchery and the flawed logic, and it's pleasant to watch their artifacts go down in flames.
Most of the software engineering field ain't no startups, however distorted the most vocal representation on HN could be.
Neither are they code sweat shops churing one quick templated eshop/company site after another (knew some people in that space, even 20 years ago 1 individual churned out easily 2-3 full sites in a week depending on complexity).
Typical companies, this includes banks btw, see these llms as production boosters, to cut off expensive saas offerings and do more inhouse, rather than head count cutting tool par excellence. Not everybody is as dumb and pennypinching-greedy as ie amazon is. There, quality of output is still massively more important than volume of it or speed. CTOs are not all bunch of shortsighted idiots. But these dont make catchy headlines, do they.