Sure, but if someone can change your QR code, they could change the address just as easily. With websites you can see if the URL looks like something legitimate, so URLs are slightly better, but Bitcoin addresses are just a long random string, so being able to see the address wouldn't actually help anything.

When done correctly by a payment processor, the receiver's QR code for a Bitcoin payment varies for every transaction. It completely eliminates the risk of mistyping it. Granted, malware could replace it, but replacing it is a lot harder than replacing a simple address.