This is my same sentiment, author has been too dramatic with the blog title. Updating from 30 to 33 SDK is just a disaster waiting to happen. In the mobile world that is just too long.
But this is also kind of a problem created by Google - why force from 30 to 33 and not force from 30 to 31, then 31 to 32 etc? Gradual API level upgrades would make more sense in my world and probably would be less risky for every party.