You're right about that. The layout of Springfield has always been inconsistent to say the least, and the writers don't apologize for that. I actually think they've done it like that on purpose, because the inconsistencies and the liberties they take are rather funny. Take "downtown" Springfield for example. Sometimes it's a modest looking downtown. Sometimes it's a giant mega metropolis rivaling NYC complete with huge skyscrapers, major bridges, and a Chinatown. Also look at the Nuclear Power Plant. Sometimes it's far away and isolated. Sometimes it's a stone's throw away from the Simpson's house!
The placement of all these things in Universal's Springfield and the randomness of it all (Lard Lad next to Duff Brewery, Android Dungeon next to Krusty Burger etc) is okay and I think the best they could've done with the space they had. But the Evergreen Terrace street sign feels the most "wrong" of everything in my opinion, just because there is nothing residential here.