… As I see it more skill would be required in learning to read and understand the waves and current at shore dive site than falling off a boat.
Fundamentally true as long as you are happy to put your safety in the hands of others. However, there’s a lot to know about boats and diving if you really want to improve your odds when things go wonky. See: http://www.scubaboard.com/forums/basic-scuba-discussions/485101-diving-seamanship.html
My comment is not intended to diminish the skills required for shore diving rather than to point out that boat diving isn’t just about giant strides and how to climb a ladder.