Why no Kindred and Karthus quotes?

First: Not sure if this has been mentioned anywhere else, so sorry

Second: I think that it would nice if Kindred had some reactions to Karthus based around how Karthus is not alive nor dead. If not that at least a reaction to Grim Reaper Karthus if that is possible. I think it would be a nice thing that only happens when those two some how come in contact on the battlefield

Edit: Just saw that the "Melody..." Quote on the Wiki, must have passed over it before. Oh well, even so. It would be nice if there was a bigger interaction