This article misses the point completely. Open source isn't great because it's easy to extract value from it. Open source is great because of the people creating value with it.
Value isn't just slapping a license on something and pushing to GitHub. It's maintaining and curating that software over years, focusing the development towards a goal. It's as much telling users what features you're not willing to add and maintain as it is extending the project to interoperate with others.
And that long term commitment to maintenance hasn't come out of the vibe coded ecosystem. Commitment is exactly what they don't want, rather they want the fast sugar high before they drop it and move on to the next thing.
The biggest threat to open source is the strip mining of the entire ecosystem, destroying communities and practices that have made it thrive for decades. In the past, open source didn't win because it always had the best implementation, but because it was good enough to solve problems for enough people that it became self sustaining from the contribution of value.
I feel that will continue, but it's also going to take a set back from those that aren't interested in contributing value back into the ecosystem from which they have extracted so much.