Well if I learned one thing about biology it is that it eludes simplistic notions as the one presented in the meme, so I get where you are coming from here. However I very much doubt the sudden disappearance of viruses would end complex life or evolution, since there are other avenues of intra-species mutation and inter-species gene transfer. It would doubtlessly upset the balance of pretty much every existing ecosystem of course.

That said, don't overthink it, it's just a meme about the (slightly modified) Agent Smith reference so neatly lying around in the parent comment.