However the additional ships have not been revealed/released as of yet. So logic would dictate that the additional unplanned 5 ships to choose from do not exist yet, therefore cannot be part of the in-game digital rewards. None of the information above has been "misleading", just trying to explain and clarify what is actually pretty simply that people need more patience than the "immediate gratification" mentality.
I'm sorry you simply cannot read so let me spell it out for you simply.
"All in-game digital rewards are already in the game, so additional ships, decals, Commander names, planet names, MPC names and starting points plus founder’s world access have been attributed to your accounts."
additional ships
"Pre-order Mercenary Pack decals and extra ships have already been added to your accounts and the Elite: Dangerous art-team are now working on completing the Digital Art Book which will be sent out to you in January. "
"
extra ships have already been added to your accounts"
"ships" being plural, meaning more than one.
These are direct quotes from newsletter 54# its not me writing these newsletters up its Frontier.
Why not simply come out and say...
"Pre-order Mercenary Pack decals paint jobs(there not but lets not get into that) and eagle have been added to your account.and the Elite: Dangerous art-team are now working on completing the Digital Art Book which will be sent out to you in January. If you ordered the Mercenary Pack and you are unsure where to download the game, go to your account and download the game from here.
Just to clarify we are still working on the 5 extra ships we announced in Newsletter 49# and aim to get them to you as soon as they are complete, which will be after completion of the initial 25 which we intend will be in the xxx time (they did say 3 months somewhere). Thank you for your patience and sorry for the misleading information."
How ever according to the quote you have had your ships so I wouldn't hold your breath.
Just like the Offline refunds debarko they are going to just drag it out and hope you forget.