It may be "less deadly" than cigs ( which I do believe ) but that's like saying getting stabbed is better for you than getting shot. I googled his name and saw his video, won't watch though because I don't think it's a good idea to give nicotine a whole bunch of mind tools she can use on you in the coming months and years.
Anything that isn't helping you stay nicotine free should be shitcanned.