What's with the ECNL/NPL pairing? The only commonality is they are both USCS leagues.
I think this is some provincial confusion and understandable. Though the marketing has been pretty hard core CPL is an SC phenomenon that will likely fail like the administrator's last league up north, the NEP.

Look around the country or even neighboring states and see what leagues the big clubs put their teams in. It will look like what my list.