Fine, now what if you need to connect to a database, or parse a PDF, or talk to a grpc backend. What a hilariously short-sighted example.
To me, this whole article just screams inexperience.
"be careful all the time" doesn't scale. Half of all developers have below-average diligence, and that's a low bar. No-one is always vigilant, don't think that you're immune to human error.
No, you need tooling, automation to assist. It needs to be supported at the package manager side. Managing a site where many files are uploaded, and then downloaded many times is not a trivial undertaking. It comes with oversight responsibilities. If it's video you have to check for CSAM. If it's executable code, then you have to check for malware.
Package managers are not evil, but they are a tempting target and need to be secured. This can't just be an individual consumer responsibility.
I can't speak for other ecosystems, but some NuGet measures are here:
https://devblogs.microsoft.com/dotnet/building-a-safer-futur...
https://learn.microsoft.com/en-us/nuget/concepts/security-be...
I believe that there have been (a few) successful compromises of packages in NuGet, and that these have been mitigated. I don't know how intense the arms race is now.
Yes, this is the C attitude, where you provide no safety rails or poka-yokes or, indeed, package managers, and therefore you get a lot of fragile reimplementations of package managers (autoconf, anyone?). But you get to keep the satisfaction of blaming the users.
nuget is pretty good. It helps that packages tend to be substantial things, not left-pad.
GNU Autoconf isn't a package manager, it's more an analogue to a setup executable on MS Windows, to detect where the user wants stuff to be installed, where the user has stuff already installed and which features the user wants.