Yeah, it's so annoying how every crossplatform project is having to do that, it's such a burden on all those indie developers all managing so much hardware and automation to support those platforms. /s
I think I've seen the same argument against Linux package managers in general, and it's bullshit in the way that it's not on the projects to package for each distro, it's on the project to provide a functioning build system, or at least binaries, and from there it's on the distribution maintainers to figure out packaging.
But also, in cases where packaging is more complex than just one dependency system for a whole language, it would be beneficial to have one unified system - if all languages are packaged in a unified way for specific system package managers, then you only need to develop a system for them once across all languages, and then you might have one system you need to plug your project into, and from there it could be automatically packaged into all those systems.
I sure hope people don't copy him, but arguably he's also experimenting with cheap designs for high-power switches and safety, and seems to know what he's doing. Not sure if he'll actually end up contributing anything meaningful to science, or if it'll forever just be entertainment, but it's better than a lot of things that money gets pumped into either way.