Open world was a wrong move. Simply - 'cause online is not high enough for such huge map (and it will not be higher after the official release, so don't be over-optimistic. Everyone who loves age of sails already knows of this game, bought and tried it), It's fun to go from side to side of the map once, maybe twice. Then it's just empty and boring. Crafting? Well, I'm not playing now, but I am level 50 crafter. I've seen how much time and effort it takes to collect all resources, no wonder people don't want to fight and loose their precious ships, modules - and now also crew and officers. Or - they simply don't have time for anything else but collecting resources, grinding ranks and money in missions etc.
What I miss is the Arena with several different maps, with islands and starting scenarios (wind, positions of the ships), a simple "store" with all ships but no upgrades and other stuff, no officers, craft and such. And don't compare it with World of Tanks - there was a great naval game years ago, called Age of Sail 2 (+Privateer's Bounty). That's what many people remember and have in mind when they mention "arena".