Minecraft wiki entry for Best_biomes_for_homes, associated text: Lack of water makes farms slightly harder to make.
Grass is very thick in this biome. It can hide spiders, camouflage creepers and is very hard to get rid of without a bucket.
Pillager outposts can generate here.
Terrain in shattered savanna can be dangerous, especially near a cliff as the player can take fatal fall damage and monsters can spawn in the darkness under the cliffs.