that's how it was originally, but weirdly enough, the official "expressway starts"/"ends" signs are here: https://osm.org/node/10274783536

it seems like a similar situation to https://osm.org/#map=19/-41.14361/174.84482 where the motorway in OSM abruptly ends because a sign says that's the end, even though it still looks like a motorway for a few more km... 