You have certainly reached out to one of the best marine sites out there, even if it is very US specific and dominated.
In fact, I am surprised that you have not had any replies from the many sea going Captains who contribute here who are very professional and are usually very well opinionated.
Personally I feel that for safety videos it may be a sign of the digital age that we live in such that it is very easy to bypass the safety part to get to what we really want to view. Unless the Companies and Captains/Ships Safety Officers make it mandatory to watch them before the main movie...a bit like the federal warning on DVDs about copying etc.
But then again, movie night is a thing of the past so how else do you get crew together, in addition to fire and boat drills and all the other tasks they have to hand.
Making them fun and interesting to watch is certainly a good way to go, much like many safety posters have been.
With all of today's broadband connectivity with ships perhaps it is possible for the shipping companies to find a way to make safety video clips come up at the start of internet sessions for example?
I certainly remember the safety films that were attached to the old movie reals...for the dozen re-runs of "Faraday Night Fever" we still had to watch the clip about safe heavy lifting! No fast forwarding then!