I think the way you did. Many things in systemd aren't as good as they should be. However it's working and does his job. The issue that raised up here is definitly a problem in the kernel. I mean it's not a good practice that other programs could flood yours. However the problem whey they argued that so hard is caused by the fact that both parties trying to fight a political war over the linux ecosystem which is just bad, kay sievers also said it. They make a project that can only be good if all parties, kernel, init, gui, are playing together and not fighting against each other like childish politicans.