audio glitch?

when i was in the subway level, i kept hearing Mysterio and Venom talk down to me, as if they were actuallyin-range. and in the area where you find the comic book, there is a brief snippit of The Lizard speaking. it sounds like he says something along the lines of 'Spider-Man! You cannot see me, but Venom has imprisoned me within my lair and has used my Lizardmen against me!' then it cuts off. Later in the level, when you're supposed to meet him face-to-face, he says almost the same thing, excluding the 'you cannot see me, but'. and also when you meet him face-to-face he adds in directions on how to reach his lair and other related conversation. there are many parts of the game where it seems like enemy voices come from nowhere, and maybe it was made that way, but it seems too weird and pointless to add in basically the same convo. as what you'd have f2f with Lizard, but slightly different, in a secret area.

I say it was an error in programming. maybe it was meant to be cut or used at another point but maybe a mistake or corner-cutting technique caused this.