Jeebus. That has to be the most... wha... I don't even know where to begin with that one...
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OK. You do understand - if it's low, everyone will move ships around lots = gameplay impacts. if it it's too high everyone will not use the feature = pointless. Within those two extremes there is potentially a good compromise (or series of compromises) somewhere that achieves a good balance of the amount of transfers taking place, people's gameplay styles, not affecting CGs or trading adversely etc.
Obviously, reaching a good balance could take time, and many iterations, stretching into the live game. Or alternately (and more likely) we get a week or so to test, it goes live with whatever numbers Frontier wants, and problems fall out along the way (as has happened before - fuel costs, repair costs, cost of the Viper and FdL etc). Also obviously not everyone will be happy with the final outcome.
The first step in all this, now, is to wait for the beta and see what Frontier come up with. Hence "what beta testing is for". Still with me?
Sorry if that sounds patronising, and obvious, but you did just state that you saw no reason in testing the balancing an aspect of a major, contentious feature, if I understood you correctly. Yes the actual function of the button to summon the ship will probably work first time (but then again, what happened to the 10% fuel button...)