You are aware, perhaps, that the belief that the "quick and easy" path is intrinsically bad in some way is delusional? Why reinvent the wheel if you can trade for it or steal it? Technology exchange, peacefully and violently both, has been with human civilization since it exists. Also, if there is some weapon used against me, *especially* if it's designed as a trap, I can only profit from knowing how it works. This idea that we're better off ignorant is - yet again - completely delusional. That this story sends a delusional thematic message is the main reason why I hate it so much, and that it sells it as morally superior is the last straw. Look at the real world and you can see it for yourself.
I'm not saying the quick and easy path is intrinsically bad. I'm saying Reaper tech is designed to be that way to lure us into the trap.
As for technology exchange, well yeah of course, but that would go for any other tech than Reaper tech, because again, it's designed to brainwash you.
The idea is not that we're better off ignorant, the idea is that we have to figure it out for ourselves. Not because that is somehow morally better, but for practical reasons. Surely the first civilization to ever pioneer and master mass effect technology didn't reverse engineer it.
The fact that Reaper tech indoctrinates is simply a practical obstacle. All we need to know is that within the contect of the MEU, studying it is not going to work.
The problem is that you take this simple theme and somehow attach more meaning to it than is intended. You take it to mean that overcoming boundaries in general is bad. You take it to mean that in general people are better off ignorant. That is not the point.
It's not a moral or philosophical message at all. IMO what it means to convey is a practical message how to solve the big problem in the MEU. Cycles of galactic extinction have been repeating themselves for a billion years because people keep making the same mistakes, they keep accepting the gifts of the old machines and so develop along the paths they desire. It is up to Shepard to break that pattern, otherwise we'll never be free from the Reapers.
All that the games do is to beat you over the head with examples of why it never worked. Yet you keep interpreting it as some kind of moral lesson about life in general, and at the same time you feel like that practical limitation shouldn't be there. But is not intended as such.
It's like disliking Star Wars because in your personal opinion the Jedi should be able to use the dark side for good. But that's simply not the way the creator(s) of the universe intended it to work. Things like that are always black and white in popular culture, and therefore absolutely not applicable to the real world.