i also wondered about that!
is charles fucking up here? teaching it as laterals 
Charles is a respected trainer, but I notice too much bro science in his approach. For example, he speaks about 'the cap of the shoulders'... well, this has nothing to do with anatomy. Being original seems his trade mark, but I see no logic in many cases. The only thing I agree with him, is the importance of mind-muscle connection.
Ronaldo did them his way, and the rest is history...