Hi guys. I have a question about exchanges supporting both coins in case of a split...

Douring the BU fiasco, a bunch of big exchanges pledged that they would support both coins... (www.cryptocoinsnews.com/18-bitcoin-exchanges-say-theyre-ready-for-a-bitcoin-split)

So my question is, does this agreement still stand and does it mean that customers will receive both coins or does it just mean that they will allow trading of the second coin?