Games qualify for the Unity Runtime Fee after two criteria have been met: 1) the game has passed a minimum revenue threshold in the last 12 months

So revenue still need to be tracked like it was before so they know when to start charging. This just adds another metric to track, not replacing anything and does not make anything easier.

Also we believe that an initial install-based fee allows creators to keep the ongoing financial gains from player engagement, unlike a revenue share

This from the CEO of unity John Riccitiello who introduced loot boxes at EA and famously called developers that don't have ongoing monetisation of games fucking idiots. Yeah, fuck that shit. This will just penalise developers that sell their game and don't constantly try to grab as much money from their user base as they can. Exactly what he wants to see. Fuck that guy he seems to destroy everything he touches.