Correct you need B.C. ID with both but old system you have to produce ID with every tag/license purchase new system you actually can go multiple seasons without proving resistance.
So no the new system does not make it harder for an ex BC resident to proceed to hunt as a resident. It actually makes it easier to cheat until you need to re new your resident status after someone moves
either way I don’t think this is a big issue in BC but was only explaining to sako79 that the new system does not help stop non residents hunting under a resident license in BC compared to the old system