Err... small? Dull?

Let's compare:
Sicily (3 settlements): 25,708 km²
Sardinia (1 settlement): 24,090 km²

And if guerrilla warfare doesn't implement itself well, why not reducing Iberia and Gaul to 4-5 settlements while we're at it?
You could make the case that Aleria was pretty much useless too, so why not get away with it too?