Lana - Complex: Something for the case of nuke getting stuck on aliens?

[WhenTanksFly]

I can understand a situation like this:

because shieldbug stronk. However, a situation like this:

(blocked by a xenomite from harvester's death) probably shouldn't happen. Now, it was my fault being too absorbed with sentry/ammo/gl to check up on the nuke, but I don't imagine the average player notice the problem in time either.
Probably happens more often on challenges with modified Onslaught or prespawns.

I wish there was some tip directing players to the unexpectedly stopped bomb, or for the thing to deal a bit of damage (at least enough for xenomites to not halt it forever) to aliens it presses against, similar to Tarnor's finish train.
Though I'd also understand dismissing the issue with "should've watched the bomb regardless, it's the objective".