I think that the way engineers let you personalize your ship is actually the best thing about engineering overall. It makes the ship really "yours".Sounds sensible, fwiw. Also, in these days of engineering, it can take so long to get a ship just the way we like it, I find it easier to develop and maintain a long term relationship. I'm still loving the Beluga, it is almost all A rated (51m cr for the larger modules is a stretch, but we're getting there) and semi-engineered, and the process has me almost completed Ranger and Tycoon, but it will still take me a while to 'finish'. But more importantly - the process and time we have had to spend together has me in love with the ship, so she will now definitely be my ride to Colonia. So there's a lot to be said for sticking with one ship and getting to know its quirks. I was interdicted in the mouth of the Maia Black Hole last night, and I think it was only familiarity with how she'd behave that saved my 8.5m rebuy. That and a refreshingly effective and committed fighter pilot.
It makes me miss the 80s and 90s when car modding was a thing. It's not, anymore, and it makes me sad.