I don't know anything about that, not my issue. I would like the runes to be more accesible and I think nobody would find that unpleasant, that's all. It's just a suggestion.
I would suggest to make the runes (Attack Runes and Def Runes) more accessible. I get it that you get x10 for 1 gold, make an option to get just 1 Rune or maybe put them in the Vote Shop for a decent rate, maybe something like 10 points = 5 runes, that way people get something useful and vote more.