Pretty much this. Supercell, from what I can tell, largely "farms out" their advertising these days (as opposed to when they used to pay big bucks to have high production adds put on TV, i.e. Liam Neeson, etc...). Now it seems they let Youtubers like Galadon be their advertisers, apparently giving them developers builds to make their advertising videos for them, and that often leads to "leaks".
So ultimately, Supercell themselves is largely responsible for the leaks by not doing their own advertising, IMO.






