DVC Y… blue card…has nothing to due with point restrictions. That simply makes you eligible for membership extras
When and how points were purchased determines their use.
If the points are eligible for use at the restricted resorts, they can be used there with a transfer.
If the membership that received them has no other qualifying points, then a call to MS is required because the restricted resorts don’t show up for booking.
If you transfer points that are eligible for restricted resorts to another one your memberships, it’s the same.
If that membership has no eligible points that can be used for restricted points, you have to call to use them.
Transferring unrestricted points to a membership with restricted points, doesn’t change the nature of the restricted points.
Those remain restricted even if you transfer in unrestricted points.