Autojoin ALL racers to Zwiftpower

Now when Zwift owns Zwiftpower, how hard would it be to to connect EVERYONE that does a race to Zwiftpower and autocreate an account with their Zwift credentials?

If you choose to race you should have a ZP account period. Can´t see any problem here, why not enforce that. Or connect Zwiftpower database to Zwift accounts so that you can NOT enter a race if the organiser of the race has choosen only to allow people with Zwiftpower accounts in their race.