Maybe I'm wrong. Maybe it feels fine even if you sit in it long periods of time. However, I'm sure that it only comes in one size, that size being the right size to pilot a plane with an ejector seat. Anyone too big or small wasn't considered in its design because they'd never make it into the relevant flight program to begin with.
My point is, consumer objects have to be designed a bit more inclusively than that, to be able to sell to a wider range of buyers. That big Hobart mixer is in the same boat: It's designed for people who wouldn't have gotten that bakery job if they couldn't work with a large, heavy piece of kitchen equipment.