Well, I think most points have been said to be fair.
Distributing, even weaker Syndicate gear among the crew, can cause a lot of havoc and to an extent even grief.
As Coldflame also said, Traitors who would use such gear are on the safe side, especially if more than 30-50% of the crew would be actively using illegal(!) technology.
On the other side, I do not understand why one would actually add even more weapons and gear that can actively be used to cause massive grief.
In the end you wouldn't be even allowed to use said items according to the rules since you'd put yourself into the role of an antagonist, at least in most cases.