The interesting thing about the Black Seas Barracuda is, a couple of years ago Lego got people to vote which set they'd like most to return. And it just so happened that Black Seas Barracuda got the number one position.
I understand that for many adults it would only be a display piece. But building the sets and arranging dioramas can be an interesting hobby. I don't play with my Lego as such. I build the sets then my nephew comes alongs and does the playing.
Lego could be another medium of model building. But unlike its glue held together counter parts, if you wanted to design something different or change the exist model, its a lot easier to do with Lego.
Basically my arguement is "Why should Lego only be concerned to what appeals to the new generation?" Its the older people who have more money, so if I was Lego I'd be trying to cater for both.
Some of the Pirate sets were somewhat basic, however if you were trying to appeal to an older market then perhaps it would be wise to design the new sets accordingly. Like they do with Star Wars. They have sets for both children and adults (aimed towards 16+).
When I asked Lego if there was going to be any more Pirate Lego, they responded: "We don't know yet"
So there's a glimmer of hope. A faint one...