Which article? The one with the black s13? he has the E-Rod crate engine that came with a evap/charcoal canister its pictured on the bottom right.
You are right it could be possible to pass with the nissan canister if the ref some how over looks it or makes a mistake. The only problem is they check the systems to make sure they function with the OBD II port. If you some how wire up the nissan canister and use the LS1 sensor with the canister I guess but why go through all that trouble I would just use the LS canister.