It’s interesting, I read several times that Cosmic Crisp has flavors reminiscent of Red Delicious. Cosmic Crisp is the child of HoneyCrisp and Enterprise. Here is the pedigree of Enterprise. Publication from Purdue University.
So there’s Delicious, McIntosh, Golden Delicious, and Rome Beauty in there as well as that Malus floribunda. But more Honeycrisp than any of the others, and more McIntosh than Delicious.
But maybe that’s where the 'Red Delicious" taste comes in. 
Whenever I read apple descriptions, I see something and think “I should try that one”. Here is PRI’s description of Enterprise, a disease resistant apple at that: " Flavor is sprightly at harvest but mellows to moderately subacid after storage. It is juicy with spicy, full rich flavor. We rate quality as very good at harvest and it improves after storage. Fruit retains its characteristic flavor and texture quality for up to 6 months in storage at 1°C. " But, I really don’t need another apple tree, so I will pass.