A fair number of people forgo multitools on the theory they are not very good tools.

I used to carry a MT with me on service calls. over time I switched to needle nose pliers, wire cutters, and a multi bit screwdriver. now I leave the tools at home and let the plant electrician cart the tools and do the work for me.

Much cheaper and far more effective than a MT.

The extra weight is an issue in a pack though. But still, a fair number of people carry a small pair of vise grips and leave the MT at home.

The one tool I have used above all else on a MT is the pliers. But, it is not a very good set of pliers, so I can understand why some would go to a vise grip. I have seriously considered doing so.