"Simultaneously roll wings level and rotate towards an initial pitch attitude of 15 degrees" is standard terminology for Boeing.
The word "TOWARDS" is usually ignored. Attitude to at least maintain airspeed and ideally climb is what is required when flying manually.
It may be less than 15 degrees depending on thrust/weight/aircraft type and scenario.
TOGA with the windshear recovery program does a good job balancing the requirements i.e. follow FD commands when activated.