because you forgot that marketing is the most important thing. Coin with only promises (marketing only like now zcl fork) can be for some time (sometimes long time more valuable then such project like zencash - where is "everything" but smart and effective marketing.

Search in google, youtube, facebook popular group .... for privacy coin - you will see that people know and suggest everything but zencash See popular reviews, popular comparison videos with for example 50-200k views...  So people do not know about zencash as privacy coin.... so they also don't know that this platform isn't only privacy coin. Simple. Good that there were PBC and McAfee suggestion so price isn't 10$-$15 like would be without these suggestions