There is difference between being in Christ so He can atone for our sins and being baptized into Him.
Jesus offered the first step to salvation for free to all. The key difference being there are more steps.
When we become baptized and open the door to Christ, we are no longer fallen souls. We have to live out our lives in these sinful bodies, but that is only temporary. Christ died for all sinful bodies, but it doesn't do any good if our souls remain fallen. We have to commit to the Truth.
Could there be a difference between being in Christ before and after He raised?
Are all sins beforehand and knowing Christ afterwards?
There isn't a requirement for all sins to be injected into Human Born Christ. There is a faith requirement in the Risen Christ for it to matter. Both involve being in Christ, but being in Christ via sin ended. We have been arguing about the timeline of Human Born Christ.