We already know the transfer ability have a really long cooldown, instead of keeping it for emergency, here he use it because (in the novel) he doesn't want to ride a car with Knight Guild, while here in the manhwa, he doesn't want to get wet, even tho he have other fast mode of transportation like his wyvern. Of course, after he use the transfer skill, his sister is in danger and he cannot use it, creating unnecessary drama. What make it worst, nothing happened in the end.