Guests using unlocked character variants

I know for a fact that the first 2-3 days of playing this game, when i would sign in, and then do split screen with my wife or son, they would be able to select that characters that i had unlocked from GW1 and from character packs in GW2. They would have to hit (ps4) cirlce, to cancel creating an ea / origin account, then x to confirm, then x again to confirm that they wouldn't be saving progress. Then they could select from the 60 or so characters that have been unlocked. Then we created the EA origin account for my son (underage) and we lost that ability for him. He would in essence be starting from scratch. However, my wife, who didnt create the origin account, and who was still signing in as a guest and could select all characters. We have since created an account for her, so that she can do the 1 player campaign etc... I fully accept this and get it.

However, we have created a new account on our PSN and we have not signed into an origin account and that guest can no longer select all character variants that the group leader has available. I know, know, KNOW, this is not how it used to be! When did this change? Why did this Change? and how can we get it back? I do not want, or expect my son to have to grind to get all the characters that were earned during PvZ1 when the guest was able to access all characters, and there was no need for him to have his own origin account.