The article mentions that most publishers will license it for 6-12 months, but it's going to vary. Basically keeping Denuvo in use indefinitely costs more money than only using it for a short time.
From a business perspective I think it makes sense to license it for that first 6-12 month period. As a consumer too I wouldn't mind that: let them protect the initial sales period and then remove the DRM for long-term use. Early adopters will get the shitty version of the game... but that's already true in so many other ways.
Huin said publishers license Denuvo technology "for a certain amount of time, [maybe] six months or a year," mainly to protect that initial sales period. After that, many publishers decline to renew that lease and instead release an updated version of the game that is not protected by Denuvo.