If it's because it provides more patient care beyond what a nurse can provide in a good system, it might be a valid point. But if it's because the system is fundamentally broken, I'm skeptical that hiring more people will actually fix anything. From personal experience, it will only create a lag that will require the same need for more hires down the road.
The issue I'm pointing to is that sometimes it's "needed" because of a bad process, like when there is redundant work. Sometimes it's needed because the system needs slack to compensate for disruptions in system dynamics. Sometimes it's "needed" because "that's how we've always done things." Point being, if it's needed, it should be because it contributes directly to better patient outcomes rather than bad processes.
It's hard to adequately staff to that level when the systems/processes are largely unmanaged. By definition, an unmanaged process doesn't know how much nursing gets spent on each element, from patient care to admin work. So it becomes just a guess as to how many you need; when people work in unmanaged processes they tend to feel overwhelmed and the knee-jerk reaction is to hire more people. And often when you add more people to an unmanaged process, the inefficiency can compound, leading you to feel like you need more people to fill the continuing gaps.
Hiring more people can be part of the solution. But you need to understand and manage the process first to get to the right answer.
My position is precisely that "I looked at nursing work in hospital and it was unmanaged." (not in every instance, of course, but certainly in those relevant to this conversation)