Creep register delay?

Not really sure how to title this one.
Was in a game on Handy earlier: http://www.creeptd.com/en/games/6uatoyl ... 3kw0ze8bdx

Me and Molly was on our last life.
I sent a shark just before Molly did: it was going through Molly's map ahead of the shark going through mine.
Even while the shark I sent left Molly's map before the shark left my map, I still died first?
So I assume there was a delay in registering it, which isn't really fair.
Molly also acknowledged that it was strange, because the difference in position was clearly visible.