They really said "I implore the GNOME team to spend a day using Windows with just your keyboard, it's useful" about them removing a feature from the mouse on Linux?
I get that other tools can have some useful features, but... I don't see how that is relevant to the rest of the article at all?
I'm also not a fan of arguments from tradition in general. ddate was included in util-linux until 2012(ish, I've also seen 2011), despite not really belonging there.
Keeping it as an opt-in feature is what I think should happen, personally. I didn't even really look into disabling it, but I won't miss it