This year the organisers recorded and published all of the talks, and you can ind them all under under the RuleML playlist:
https://www.youtube.com/playlist?list=PLQkz10de_pG8xIi3t_aT0JHzrgkQhlOba
https://www.youtube.com/playlist?list=PLQkz10de_pG8xIi3t_aT0JHzrgkQhlOba