Support as secondary still gives you support 80% of your games
I had support 9 times in a row. Now I just pick mid as secondary even though I can't play mid. Enjoying my 100% top lane chance.
It's just a vicious cycle where secondary support players stop playing it because it's not popular enough, making it even less popular. Also, filling in ranked is retarded because you place yourself at a competitive disadvantage by choosing 5 roles instead of 2.