This is interesting and I had never seen this video before but I came to this same conclusion with my speakers. I have Cube Nenuphar Minis, which are 8" single drivers. I've loved everything about the speakers except they tend to present the headphone effect where sound, especially vocals, can beam out of one speaker or the other. I had never toed in speakers very aggressively and one day, being frustrated with the image, I moved the speakers a little closer together and then toed in so the right speaker pointed to the left outside edge of the listening position and the left speaker pointed to the outside edge of the right of the listening position. Essentially, the speakers cross probably 2' in front of the listening area. And, holy moly! The sound was awesome. Speakers disappeared, deep detailed image, no loss in bass. Only issue was the image was so locked in to the middle it was a bit narrow. Over time I slowly pulled the speakers out wider and another 6" into the room and it has continued to improve. To make sure I wasn't nuts I went back to traditional position that's worked with other speakers with a touch of toe in, and I tried no toe in, and again the sound was very L/R dominant. So, maybe depending on the room and speakers this method works. Certainly is working for me.