This "feature" has been in the game for as long as I can remember. How are we supposed to plan for this? There's no counter.

Not my video but it demonstrate this perfectly. The warden is NOWHERE near the Seeking Air Mine trigger range yet it triggers on a loon, then flies 2x its trigger distance to wipe.

Start the video at 4:55. (no option to set it in this embedded format)
Watch as the air mine triggers then re-targets the warden who would otherwise be too far away to trigger the bomb.