That is quite the theory you have there. Since this "did happen before," it makes me wonder how I was able to compete in the past. I've always played solo and never once run into any problems of being able to continue crafting. I suppose we will have to agree to disagree.
In my opinion, if 5 clans are working together to achieve a common goal then they deserve to get ahead for their organization and effort. Why should 1 player be able to match the effort of 100? I do know a couple of crafter's who have been able to boost their crafting level above others, but they have done so by having teammates craft parts for them while they build the ships. In this way they are able spend their crafting hours in the most efficient way possible. Do you also want to see the trading of parts outlawed next? How is it you plan to balance crafter's inside of a clan getting ahead in this way?