It's hilarious that their arguments for the commercial engine are somehow both "you can use one version forever" and "you might be forced to use one version of something else forever."
Unreal uses perpetual licenses for their versions meaning this kind of bullshit behavior is not possible
Then it's goofy af to say Godot might make a license change that necessitates using one version in perpetuity-except a version you and others are allowed to modify and distribute.