I have to admit. I have a little experience with Made to measure, but none at all with true bespoke. Here are the differences as I understand them:
A Bespoke garment doesn't assume anything- it considers that one arm may be slightly longer, or one shoulder higher. It recognizes that a fat man wants his interior pockets to be higher so that his wallet doesn't sit on his paunch, that a thin man wants to look more solid, etc. Lapels and armholes are adjusted to fit the man. MTM simply uses the same standard patterns with no allowance for these idiosyncracies. The measurement gets you a better fit in the length or chest or sleeve, but it starts with the standard factory house model.

As for kilts, consider the variations between a swaybacked man, or one with a fat gut, and one who is short-waisted. A kiltmaker who sees his or her customer can do things that wouldn't occur to someone just reading the measurements. Think of scooped waistbands, for instance.

Is everyone familiar with the tailor's term "assatol"? Many a young man is said to have "No assatol" meaning his hips are as small as his waistline. Often, this changes over time. Kilts can accommodate some variance because of the pleats, but a kilt design based on a stick-straight body doesn't work on a curved one- and again, the body may measure as straight, but may actually be anything but cylindrical. It may be wide and shallow or narrow and deep- apron width has to accommodate this.

The line may blur with kilts, but I expect some of our kiltmakers can do a better job of distinguishing between bespoke ( true custom) and one made to the proper size without seeing the wearer or accommodating his subtleties.

Again, I am mostly asking, not telling...