Issue with landmarks under construction

when the enemy is constructing a landmark, when it get to 0 HP while under construction it does not get destroyed. why?, is it a bug.

As far as I’ve seen in game, it is destroyed. It just doesn’t appear to be destroyed

but the enemy can just finish the construction age up and continue as normal with some repairs to do on it, they should have to rebuild it from rubble in order to age up, or at least take the loss f food and gold and have to gather it all back up and place it else where.

Ah, I see way you are saying.
Just to make landmark victories require a decisive victory.
I drop an outpost by enemy landmarks when they go down, to prevent reconstruction, one or two outposts with arrows kill villagers fast enough to prevent a landmark from being resurrected or leaving a few units behind