I think it's pretty telling that so many of the people they talk to and a lot of the focus of the article isn't really about older gamers, it's about their money.
The opportunity is substantial. The 40+ segment in the US is on track to grow from $19 billion in 2022 to $43 billion by 2030, a 132% expansion at a moment when the rest of the industry is shrinking. These are players with the most disposable income, the longest gaming literacy, and the highest brand loyalty.
I'm in that "40+ segment" and I suspect part of the "problem" these companies face is that older gamers have seen the enshitification of so many of the brands we love. Our tolerance for bullshit is basically gone at this point. Micro transactions, season passes, fucking ads in games, all of that bullshit is a quick way to not get our money.
I also suspect "brand loyalty" is basically gone for the same reason. As a kid, I looked for the Electronic Arts logo. If I saw this logo on a game package, I knew I was looking at a good game. I haven't bought an EA game in years. I don't expect to buy an EA game any time soon and I basically ignore everything they do. Sure, if a trailer for Starflight 3 dropped, I'd sit up and take notice. I'd also expect it to be an enshitified mess wearing the skin of a beloved series to sucker me in, before pouncing on my wallet.
So ya, maybe just make good games and older gamers will inevitably buy them. I mean, Larian can pretty much say, "hi we're making..." and I'll have my wallet out and be pulling bills before they get any further. And maybe that's your "brand loyalty". Game companies who make good games and aren't private equity firms wearing the dead skin suits of brands we used to love.