Nothing wrong with machine dovetails, in fact there are big old industrial machines used in industry for cutting them.
Some though get a bit elitist, but more often than not those people dont have to make a living from it.
They do the job, and are really handy if its something with lots of drawers.
I did a pair of tall drawer units at college. total number of dovetails to cut(in a time constrained environment) was 280(12 drawers of varying sizes).
I bought a jig specifically for that task and without it chances of coming in in time would have been zero. You dont pass a course by not completing the tasks. And besides its the overall design and look of the units rather than how i made the drawers that was the important bit.