NYT occasionally uses fancy interactive articles. They have games, and other things that are better on the app. The NYT app is actually very good
I assume the reason they are pushing me to the app is that it benefits them not me (longer dwell times, maybe easier tracking for behavior/ads), and that is precisely why I want to stay in the browser. Covering up a good portion of the article and preventing me from scrolling until I click the tiny link to decline is hostile and is the only thing degrading the experience on the website for most articles I read.