Only ENS "upgrade" is free & not the Product. If I have to speculate on the business model , I would guess SFOR/ACS will be paid on a per licence basis or Yearly licence subscription ( This is only for Retail )

Enterprise @ https://www.mcafee.com/us/resources/solution-...curity.pdf is a different ball game altogether

Ref Fact sheet https://bit.ly/2JqW8Ee