ls is not Unixy, find is not Unixy, wget/curl are not Unixy, the list is infinite.
Anyways, those breakages aren't nearly as big of a deviation from the modular design as something like systemd. I'm sorry, but that comparison just cannot be made.
My point is worse than you think.
I'm denying the actual utility of the "do one thing and do it well" in practice. It's an awesome soundbite and you can't really argue with it (who would want tools that do "it" badly?), but it practice it wasn't ever respected.
So why treat it like a sacred icon?
Be practical instead, ergo systemd.