I once tried, in the ancient dawn of history known as the Age of f.i.l.m., to shoot wildlife (deer) with a 4x5" up close. Wild animals, not locked up in a zoo. It was doable, about just, but mostly to point out there ought to be better solutions to the challenge on the technical side. However, the 4x5" view camera was the only one I had with me.
The situation today is not different although the camera types are. As a photographer, you need the appropriate tool for the job.