When an opponent is defeated because they lost all structures (short game is on), some my structures also explode

[Prometheus3375]

Case 1.
I as a NOD player captured stealth generator of the AI opponent (NOD). Once it lost all structures, this generator is exploded.

Case 2.
I as a NOD player build an MCV and deployed near an enemy base (NOD). There I built stealth generator and Tiberium Waste Facility. Once the opponent lost, the generator and the facility exploded.

Skirmish settings for both cases:

[Prometheus3375]

For case 1 the generator could be destroyed due to collateral damage of the exploding units. Here is an example of exploding units and damage dealt to nearby structures.

short-game-explode.mp4

Harvester was one cell away from Power Plant, yet the plant still exploded. Radar was also one cell away and took half damage. But still, I have no clue what happened in case 2. Couldn't be stealth units.

[Bittah]

It's normal for harvesters filled with blue tiberium to deal a lot of damage to the surrounding cells.
Is this not also what happened in Case 2?

[Prometheus3375]

In case 2 all enemy units including harvesters already left that base (all but one structure were sold and all units were sent to attack), then that last structure got destroyed/sold and then my generator and facility exploded.

[Prometheus3375]

I started to think it could be weed eaters, but my test showed full eater does not damage enough to explode facility or generator. If I encounter this issue again, I will provide video.