I don't want to spoil all the theoretical fun, but in the real world you need bone, more so in a grazing only animal, that doesn't mean you need excessive length of bone, but you need the length of bone to be in balance with the rest of the body to ensure freedom of movement.
Maybe I should just clarify this as well...
When the term bone is used in beef cattle it is refered to the thickness and shape of bone, thicker, (to a point) flatter bone is prefered over thin, dense, round bone. As with everything in nature everything needs to be in balance, you need heavier, flatter bone to have more surface area for muscle attachment, but heavy bone will also add to BW and dystocia and is antagonistic to milking ability.
Thin round bone is associated with light muscled, often later maturing animals with weaker constitutions that are generally poorer doers. It may mean they are more of a dairy type and excessively light bone also compromise fertility.
There really is no need to overthink this, just go back to what herefords became popular for... grazing animals where other higher performing breeds failed and look at the breed characteristics... herefords always were and always should be medium boned animals of moderate size.
The past is more than enough proof that going away from the breed characteristics never work in the long run.
