https://www.sciencenews.org/article/shorter-winged-swallows-evolve-around-highways
wings that are a few millimeters shorter is not even remotely comparable to the changes in this "graham" thing. many of the differences he has are huge, there are even some totally new structures, and some others have disappeared. among other issues. I'm not really sure what the total amount of swallows were around those roads, but it sounds like those who died made up a pretty big percentage. traffic injuries (
~50 million. includes those that didn't result in death or severe injury, which would probably not affect selection), by comparison, make up a small percentage of the human population, and occur all over the world, rather than being mostly localized to one area. natural selection in the form of death will have less of an effect on the species when the deaths don't have a large effect on the available people for someone to choose a partner from. anything that doesn't cause serious population culls will take much longer
also, it would require people to choose to reproduce with people who looked more and more like "graham", and maybe over millions of years people wouldn't notice the difference, but if you're talking about a few hundred... nope. imagine if those swallows had preferred their potential mates to have longer wings