Either these items are bugged or have an extremely low drop rate that is not even worth attempting raids for...
I have never seen the ship drop for any of my ft members, I have seen it in the air and just played with someone who has received the ship 3x and has the new sparrow.
I know this has been looked at before but I feel it needs to be rechecked. It took 1+ years before some ships like the Comitatus & Fatal Vision where finally looked at and declared to be bugged. I don't want to be wasting my time going after something that is locked from dropping.
[spoiler]Moderator edit: This thread has been moved to #Feedback forum so that other Destiny players can weigh in. See [url=https://www.bungie.net/en/Forum/Post/139533839/0/0]Cozmo's thread[/url] for more information about the #Feedback tag and its uses.
Feel free to private message the moderator who moved your post, link to topic for further clarification about why this topic was moved.[/spoiler]