Riding a motorcycle on a freeway at over 200 kph you surely feel the rush of air around you. A typical commercial jet airliner travels at approximately 3-5 times that speed at cruise altitude. Assuming you could open the cabin door closest to the wing fuselage and step out on to the wing, does the air rush feel more 3-5 times more intense than if you were on your bike? Does it mean there is more air resistance to blow you off if your bike could travel that speed? If so, then what would be required to secure yourself to the aircraft in order not to be blown off from the air velocity around you, again assuming that air temperature and thickness of air to support human consciousness isn't a factor?
Then there is a issue of cabin depressurizing, but again assuming this is ignored or resolved through pressure equalization with the outside pressure (oxygen masks will need to be worn by the rest of passengers inside for survival)