Is that bug or feature? https://imgur.com/a/igp8XFo

Not a bug, although I didn't expect players to do this. :D
You have found a creative way to use this mod.

But consider the personal laser defense is more expensive (5× normal turret), much shorter range (15 vs 24) and only 50% efficiency in vehicle nuclear reactor, it is neither an exploit nor OP.
At that point of game, players probably spam nukes and/or artillery to clear nests, not bothering with biters anyway. It is fully justified to do such a less-efficient moving turret creep.
Even in PvP, this can be countered. The enemies can deal with that using less resources. :-)