Does 'By this time, Bin Ladin was well-known and a senior figure among Islamist extremists, especially those in Egypt, the Arabian Peninsula, and the Afghanistan-Pakistan border region.' stand independently of the premise 'At this point Bin Laden had gained prominence in the radical Islamist realm particularly in areas like Pakistan, Afghanistan and Egypt.', neither following nor contradicting it?
By this time, Bin Ladin was well-known and a senior figure among Islamist extremists, especially those in Egypt, the Arabian Peninsula, and the Afghanistan-Pakistan border region.###At this point Bin Laden had gained prominence in the radical Islamist realm particularly in areas like Pakistan, Afghanistan and Egypt.