So many people believe this misconception. Range check mechanics in ToT hurt 25M far more. Raid wipe mechanics with 25 people are more frequent, thus more chances of a wipe. Random choice mechanics like Amber-shaper & Durumu create an added period of learning for mechanics because it can not hit player X until the 20th attempt, or the 50th attempt, then it is the first time they see it.
There's so much evidence to the contrary on this yet people continue to try to slip it into arguments. I'm not saying 10M is always easier, just that your choice of arguments is entirely invalid.