The system doesn't even let you add more than 3 higher level players and none could be added after August 31st.
What you are actually saying is that in your opinion because a guy was on an 'A' roster at some point that he is an 'A' caliber player. This of course is not always the case.
So unless your saying a guy is a legit A player and is using a second profile or played under a different name then I think you are wrong on this one.
As for D2E's 'B' World title, that was in September of 2012, 7 years ago...
If the UIC said you couldn't protest players then that was a mistake but he claimed he said you can't protest a roster. Those are two separate things you may be confusing.
Roster and player are not the same. The rosters had already been prechecked.