That's not completely true. While it's possible to get a BC driver's license if your country has a reciprocal program, you still have to have an accepted document to get one. You can have an OWP or other temporary visas/permits to get a BC driver's license, but the COPR is not accepted. Therefore, you cannot get a BC driver's license until you have the actual PR card. http://www.icbc.com/driver-licensing/visit-dl-office/Pages/Accepted-ID.aspx
If a person doesn't already have a BC license and has landed in Canada, they can't get one under any temporary resident visa/status/permit, because they are no longer a temporary resident. They are a permanent resident, but won't have the required ID until the PR card arrives.
When using the ID wizard it states:
"Bring one of the following:
Valid Permanent Resident Card (must not be expired)
or
Canadian Record of Landing/Canadian Immigration Identification Record (form IMM1000 only)"
The latter is not the same as a COPR.