Rek'sai Ultimate Bug [GAMEPLAY]

I was lucky enough to be near a tunnel that Rek'sai was teleporting to (and not be attacked by enemies), and thinking that I could stop it, I stood atop it and destroyed it before Rek'sai arrived. But the light animation was still going and Rek'sai still arrived.

I understand that Rek'sai might have been travelling while I destroyed the Tunnel, but if somebody more squishy than Garen/Tank attempts to destroy it they would get a rather unpleasant surprise.

It's only happened once, but again, it was pure chance that the situation was favorable.