* Essentially this is an issue between Unity and game companies using Unity, not endusers. If anyone doesn't buy a unity game anymore because of this he will hurt the game companies more than Unity. For future games lots of developers might switch to other engines if unity's price policy is too risky or too expensive for them. If they don't change then Unity may be right with their opinion that they didn't charge enough until now.
* Still, the announced policy sounds like their brains were clouded by illegal substances when Unity came up with that plan 😉. Or they knew they would get flak anyway and wanted something to backpedal from so the developers would think they achieved something in the end. Sort of like negotiations are always started with extreme positions so the middle ground everyone agrees to eventually is nearer to the wanted result.
* If anyone thinks TFP would switch to whatever engine for 7D2D, forget it. No matter how much it costs in licence fees, switching engines would almost surely cost more, and a lot more time. 7D2D will be released with Unity.
Also they surely have a Unity Pro subscription and will pay less than the .20 cent per installed game. Statistically most players will have the game installed only once, and even if someone installs the game on virtual machines to harm TFP it would be a drop in an ocean. And Unity can simply add a limit to the maximum installations per user that would have to be payed to make it impossible for an internet mob to perceptibly harm TFP through creating lots of parallel installations.