The phrase about germs being splashed around the kitchen/ a kitchen/ one's kitchen was an exaggeration too. It could happen but it's not inevitable.
I'm not arguing that washing chicken is a good idea, just with the idea that washing chicken will inevitably contaminate something. There's a big difference between a possible contamination and an inevitable one. There's also a big difference between cleaning up contamination and not cleaning it up.
So, what I'm arguing is that it's possible to wash raw chicken without contaminating splashing germs around one's kitchen or, even if germs do get splashed around, to clean them up effectively, i.e. so as not to suffer any unpleasant effects.
I do not wash chicken.