This seems to be a gouge in the door that has gone all the way to the bare metal. Is it deal breaker? Not strictly. The damage is not structural and if the owner is not hiding something more sinister, then, adjust the price for having the damage repaired in the final price and go for it.
Having said that there are a huge number of gen X civics about the market place but the problem is that how can you ensure that they were not in a major accident and then all fixed up and sold as bumper to bumper "geniyan"? .