Granted the population density in those areas is not high as in Waqooyi galbeed but those
tuulos each have 1,000 or more usually. You complained about being dispersed in a highly
urbanized area I doubt you would do well if you exchanged places with SY and had to
cover all that land as one sub clan. When your sub clan of Makahiil has to cover over 135
km territory and fill every tuulo then you can complain about being dispersed and not being
able to produce MPs in elections but not now.
The map was just a example that majority of SM live in that area so I don't see the complains about being dispersed being a good excuse. It is easier to urbanize there and live in one big
town as sub clan plus you live
in the middle of SM and have no enemies. 
.