The video game market is a feast or famine kind of deal. Few games break even, even fewer make a profit.

What Unity probably wants or needs is to take a cut off the large successes. That’s where all the money is.

The problem is that they aren’t involved in distribution.

This per/install model is trying to solve this by turning Unity into some kind of malware. A completely tone deaf move.

Why not build business relationships with the companies that have been successful with Unity? It’s in the interest of both sides that Unity and its ecosystem are stable, improving and growing.