Saying something isn't a valid argument, isn't a valid argument, because you didn't give any reason why it isn't valid. Also I'm guessing it's not a bug. Don't you find it a little odd that bloodpact delay II just happened to be capped at 15 like blood pact delay? It's almost like when they made it possible to go over 15 they forgot to write in a cap. If it was a ninja fix it's a pretty shady thing to not put it in the patch notes, but my money is on the cap being intentional.