Finsheep are mainly raised for wool nowadays, not everyone raises for meat, you know. Many people have sheep as just pets, anyway, which was what this thread was about.
They are often able to raise these large ammounts of lambs with little, if any trouble depending upon the ewe. There have been records of as many as eight lambs from the same finsheep ewe.
Feeding once in the morning and once in the evening is usually all that is needed for the finnsheep to raise the litter successfully. If you need to bottlefeed most of the babies fulltime then you don't have a very good ewe. Finnsheep were bred to be able to raise the litters without help originally.
They have very good fleeces and more lambs means more to sell. you want to select your breeders that were at least a triplet for good breeding potential in the Finns. they also produce fairly large quantities of milk for their size.
From the perspective of a wool breeder a small sheep with a good fleece that produces large ammounts of lambs is an ideal. If you aren't going to eat them then they don't need to be a large sheep.