Everyone should play the game as they want (if that includes exploits that aren't punishable I am fine with it), but those players should not complain when they loose their precious Cutter because they never learned how to play, also they should not complain about grinding just because they decided to skip 95% of the gameplay...
mostly agree with the sentiment but you left out one huge distinction and exaggerate quite a bit,
1. I don't care what profession or play style - if you lose your ship, shouldn't complain unless it was actual, specific game function bug that led to loss of ship.
2. You left out huge distinction between traders who know "how to play" as traders quite well vs implying traders who don't have good combat skills = somehow "never learned how to play". A good trader needs to learn game economics, how to plot safe efficient jump routes, and how to escape interdictions to protect his cargo. That is it.
if they lose their cutter as you say due to lack of any of the above, I agree and and have no sympathy to complaining. If the trader routed through risky area, or never learned escape interdiction tactics because they took short cuts on way to cutter, that is their problem. But you seem to be lumping a whole lot more into what you imply "they never learned how to play"
3. Claiming 95% of gameplay skipped because someone sticks to one primary profession is quite a huge exaggeration.