I think the author raises a good point about how much human time/energy/effort go into creating content for systems that are at best closed loops when it comes to search-ability/discovery methods, and prone to disappear completely if one company loses funding or has a policy change at worst.
Both of those seem antithetical to the free exchange of information that was the ethos of the early internet.
I also recognize the profound economic incentives that work against that free exchange of information, and I'm not offering a solution, so grain of salt and all that.