The score inflation is just ridiculous, that's the problem.
The standard this year has for the most part been average at best, and I wouldn't rank anyone from this year in my overall top 10, yet they're scoring 35+ left right and centre.
The fact that someone can score 40 when half their routine was disguised by having other professional dancers on the floor, and for a disco routine at that, shows how laughable the 'judging' has become, and how far away from proper dancing this show has gone.