It would send the game down a dark route if they started selling ships. (Even if it's some "starter pack").
If they did that, then they would be going against everything that they have said in previous statements, which they would only be selling cosmetic items.
Ship rewards are, well rewards. They are to thank people for adopting into the game early, help with development by spending more money, and help by getting involved on the forums, and providing feedback.
Now I'm not saying "They shouldn't do it because it's unfair to KS backers" - I'm saying that they shouldn't because it's aiming towards a pay-to-win shop.
There are only a few things you can buy in game with credits. Ships, modules, weapons and commodities. Now if they started selling one of those things with real money, then they are lowering any need for people to even get credits.
You know how the road starts... Starter pack with a cobra. Then later "Advanced pack" with a python... and further down the line "elite pack" with an anaconda.
It's not good.
This is one of the reasons that I am not buying into Star Citizen. That game is extremely pay to win, where you can buy ships with real money, and credits. I don't want Elite to go down that route.