Similar experience. I bought a Kia last month. The salesman was insistent that his "delivery checklist" needed to be complete or he'd be in trouble with his manager. It included sitting with me in the car to make sure the app got installed on my phone. Thankfully, my trusty Moto is too old and the Play Store said it was incompatible with the app (I'd be curious to know exactly why, but haven't pursued it). The salesman looked quite dejected.
To me the reasons for this pressure seemed quite obvious: to ensure that I was fully enrolled in the data collection.