It is entirely possible that the tortillas will get soggy because of the oil and juice from the beef, but I find if cooked properly it is not an issue. When the burger taco is flipped so the tortilla side is down, the hot surface of the pan will help it get nice and crispy. Additionally, there are only 2 oz of ground beef per tortilla in this recipe which is a perfect amount. It won't overpower the tortilla or produce too much oil, which is what could make your tortilla soggy.