6 years late, but i completely agree. Have been playing minecraft for a big while, and biomes now look like just a big mess. Oceans are way too small, with all content that has been added(though didn't existed when your post was made) they are illegally too small. Exploring land became really boring, i have been doing it for 9 years, we need bigger oceans.
ill give my support, even though im too late.