I don't think any decent member here is going to ever call you into account or accuse you of derailing this or any other thread so have at it.
As for scuba diving I live not too far from Biscayne Park where they train and i've seen sharks there so like you I'll gladly watch from shore. Also if I were to dive for such I don't think i'd come on shore very understanding of "The other Man" if i found a human artifact.
I understand the cultural, historical, and spiritual importance of this, and don't mean to derail the thread, but I'm not gonna lie, the thought of diving for shipwrecked slave ships sounds... just... a little bit... scary.