Looking at the selections so far, I'm not overly concerned with the direction of travel and think the 'CCC effect' is probably being a little overstated. As far as I can see, only Finland and Estonia have gone full 00s style novelty entry. They're the most likely countries to be Kaarija influenced anyway, but both were public selections that I actually think would have happened anyway. At best you might argue Finland could have chosen not put a song like that in the selection at all, but I think they probably would have either way. Estonia, it's a massively popular group so they were always going to win.
Fewer countries defaulting to boring jury wank like Boys Don't Cry is certainly a net positive, for my personal taste and for the contest IMO.