score:4
According to Wikipedia, the Keikyū Airport Line is the 6.5km stretch from Haneda to Keikyū Kamada, at which the line changes name and becomes Keikyū Main Line. Since the Airport Line offers Airport Express service from Haneda to your destination, you shouldn't have to change train at Kamada. Moreover this is reflected in the screenshot you posted which all in all seems to suggest only a line name change rather than an actual connection.