According to the article this also includes an equal stake in the company. With this in mind the price per coin is infact lower, depending on how one values a stake in Zcash corp.
"In return for $2 million, the new round of investors collectively took ownership of 6.25% of the company.That implies that the new investors were effectively valuing the company at $32 million (at a time when the uncertainties were greater).The overall amount raised including the previous round is $3 million, and the investors collectively now own 16.4% of the company."
That would matter if Zcash develops something other than the coin.