by Scorpion0x17
Being able to play evolutions in response to someone else reaching a VP win condition doesn't actually need interrupts or a stack.It just needs that a player be able to play cards in response to, and thereby prevent, a win.
So the "Richard said..." argument is moot.
And the rules as I read them leave room for a player to play an evolution in response to, and thereby prevent, a win condition.
The rules, though, could just as easily be read such that this is not allowed.
Therefor I think it best for each group to decide for themselves which interpretation to use, as there is no clearly right answer.