i hate how so many Drs / profesionals are so quick to jump in with advice like that...
You DD will sleep thru when she is ready and if you are happy doing things the way you are dont stop! As long as you and your DD are happy and healthy there is no need to do anything different
Im pretty sure by the time she leaves home she will be more than happy to self settle without being B/F ROFL
You are doing a great job!!!