The initial ideas might have been sound, but the devil was in the details, and some rather questionable decisions have been made. Even when the idea was introduced, it was already quite polarizing, with most people either strongly liking or disliking the ideas. Over time, once we had time to test it live, the issues became more and more apparent, until one and a half years later, Frontier had to do a major rework and release Engineering 2.0. That fixed many of the issues that the original introduced, but not all of them. One might still argue that the game would have been better off if Engineering was never introduced and the dev time on it was better spent elsewhere, but thinking on that was mostly pointless, as for better or for worse, Engineering was there to stay.
Find "Engineering", replace "FSS", remind me on 2020 July 13 to revisit this post.