Yeah, he has since moved to downtown Everett. I think he started out in Lake Stevens, hence the confusion. Nevertheless, Everett is only in WA-1 in my ideal map. My abomination (AKA incumbent gerrymander, which tragically may be closer to reality) gives him Everett.
It's not like Congressmen moving is unprecedented, though. Baird moved to Vancouver after the 2000 redistricting, IIRC.
Especially since it represents the Incumbent moving back to his original town. It probably won't be a big deal if Larsen wants to. Though again, he's losing a bunch of reliable Democratic votes, so i don't know how well he'd take to an Everett-less 2nd district anyway.