I agree with them when they say distros shouldn't be theming their apps by default. When the packager breaks a package, it misleadingly gives users the impression that the software is at fault. Unless the distro itself is willing to field all the user complaints and bug reports, it just ends up causing problems for the maintainers.

Where I will never agree with them is in the demand that the developer has exclusive control over the application icon. It's inconsequential to the software's functionality, and if anyone thinks their brand should have more rights to a computer than the person who owns it, they can rightfully fuck off with the likes of Apple and Microsoft.