I disgaree with that assessment.
Why NOT salvage? With mothballing, you don't have to repair ship immediately. And with large transports (and possibly mobile repair ship), you can easily carry more than enough supplies to explore AND repair a few ships. Combines with skills that grant you 50% repair for free, I don't see it detracting from exploration at all.
Besides, what if people WANT to do it? Developers often deliberately gut completely logical/common sense moves to try and force players to play their game "the right way".
I edited the ship costs, the buying and selling prices, restoration costs and many other variables and values and am having more fun than I ever had. I can actually turn a profit when restoring ships and selling them (partially because ships are far more expensive). The whole "better for the play experience" is BS of the highest magnitude.