I think it is too early to tell, but it is definitely doing better than people expected. I think the people that sold early are regretting it now.
You're right. It hasn't proven anything yet. The gap between bitcoin and bitcoin cash is quite different and it is only a probability case right now. Thesedays I hear many negative comments about bitcoin cash because if that will prevail, the have many adjustments in terms of transactions and conversions to a real money from their wallets.