Please consider adding the Nature's Compass mod. Also, make it really easy to craft, so it's available very early. Even though Lost Cities will overwrite the biome to some extent, there are several reasons to search out particular biomes. For example:

• Animals will still spawn only in the proper underlying biome, so if you are unfortunate enough to start in a Deep Ocean biome, you need to know what direction to go to find your sheeps and cows.

• Sugar cane production is fairly important early on, and Snad requires a fair amount of sand. Many people prefer scraping deserts for large quantities of sand, and since the Lost Cities pays attention to the biome, it's also a good biome to find red and yellow building blocks (red sandstone, that "red netherwort" block, etc).

• Some people also prefer building with particular shades of wood, which are often biome specific (I'm thinking dark oak in particular).