But the Apache License is truly dead for startups. Most of "open source" startups are living on the VC investments. If a good business cycle cannot be built, the achievements of open source cannot be truly maintained. This is the author's usefulness.
Maybe, but the right move is to copyleft, not to closed source.
The Linux kernel is almost the only one in the world and cannot be copied.
And a lot of the companies mentioned in the article have moved to BSL, which _is_ copyleft (after a few years of delay), or to SSPL which is arguably even more extreme copyleft than AGPL.