Is it just me or is there a lack of counters to healing?

I just feel like when champions like sona and soraka or kog with lifesteal get going its almost impossible to find an item to purchase to play against them. While mortal reminder exist and so does morellonomicon it just feels like two items doesn't give players enough options. Specifically with mortal reminder, the fact that I'm forced to build armor pen in order to get grievous wounds is kind of bad imo. As far as items there are only two items that can be bought to counter healing, only two champions that specifically counter healing with their abilities (varus and katarina) and using ignite doesn't work against a sona or a soraka. I feel like buffing or adding in new more enticing options that involve grievous wounds would also help those dealing with the Xin Zhao monster right now. So what do you guys think? Thanks. :)