cause sonic guns really just piss venom off anymore. a pissed of venom trounced spiderman and the human torch after getting blasted full yeild by a onic gun and then torched by thorch. Venom took on he entirety of the jury (who packs nothing but explosives, high calibur rounds, and huge sonic guns), spiderman, being burned by fire, and a giant super strong alien looking villian all in the same comic. venom can tendril cyborg while leaping all around him to avoid getting hit, there's no way cyborgs gonna take him.