The comments weren't intended to be confusing. They were intended to help folks see God's plan for us to be united with His Son. Considering the text of Romans 6:3-11, it is obvious that baptism is under discussion. And, in this imagery, baptism is presented as God's way of uniting us with Jesus' death, burial, and resurrection. Thus, if we can be saved without being baptized, then we can be saved without being united with Jesus. Make better sense?
Verse 7. We are freed from sins in baptism. Thus, for those that conclude that baptism isn't necessary, that would mean one could be saved while still in their sins. Obviously, those that believe this need to do some explaining.
And, verse 11. We are buried with Christ in baptism, die to sin, and then arise alive to God. Thus, we see how one is born again. Those that don't believe that baptism is necessary miss the imagery. Baptism (by one that believes, repents, and confesses Jesus) is God's way for us to be born again. Thus, to believe that one can be saved without baptism means that one can be saved without becoming alive to God (or being born again). See the point?
Hopefully, things make more sense now. If not, say so and we'll work on it some more.