yeah, as they said, it's a glitch, or more like a fault in the game
BUT
I don't think it's lame in classic and classic-like mods, because it is actually hard to get something inside uke like that in these mods.
what does bug me about these replays is that they often lack style for achieving something like that. like here, you would have normally kicked through uke, but here you contracted to keep the foot inside the peck for longer. I know it's for the damage, but still, I think most agree with me, it is also as much away from the stylishness
then again, the intention of these kinds of replays may not be stylishness...