I take it you've never heard of RNG?
It's quite a popular game mechanic. Used in triple AAA games, by top tier devs.
It's about the range of outcomes which come about as a result of that RNG, buster. It's not a problem if during combat, you lose 2 soldiers and your enemy loses 3 because of RNG, but here the outcome of this 6–8 day period can range anywhere from "nothing bad happens" to "your entire base is destroyed, thousands' worth in gold, and you have to spend the next however many days trying to rebuild as your buildings are continually razed again before your troops can arrive to defend them". It doesn't matter if that latter scenario happens one in ten times, or even one in thirty—it's not acceptable.
There is nothing to disagree with. It's an absolute fact.
The game is responsible for it existing.
The player is responsible for not paying attention to the information they were given & not acting before the bonus ran out.
The player backed themself into a corner. No-one put a gun to their head & forced them to ignore the crucial information.
Yes, the game could do more. Maybe a reminder 8 days before it expires, so that you still have time to move troops, would help.
Either way, the same information is available to all of us & only a couple of people have managed to mess things up.
I'm trying to find an anecdote I read about planes during WW2, but unfortunately I can't. It went something like this:
The engineers made a piece that was supposed to be inserted a certain way into another, and if it was inserted backwards, the plane wouldn't be able to take off. So they send the plans to the manufacturer with a note saying clearly: this piece has to be inserted in such a manner, so don't get it backwards. Nonetheless, following this, there were several reports of plane malfunctions due to the piece being inserted backwards by the people working for the manufacturer.
Now you might read this and think "Wow, these people are dumbasses, how could they get it wrong when it was explicitly told them?" and there is some truth to that, but the
real question is: "If it was so primordial that that piece be inserted a certain way, why was it even designed in a way that let it be inserted backwards in the first place?" Moral of the story: someone's going to fuck up somewhere—there's nothing you can do about that—, and so it's your duty, if it's within your power to do so, to make it so a fuck-up isn't possible in the first place.