The Reload system of the past was somewhat interesting but not particularly made well, whereas I think Reassemble was at least a good use of the system once you get two charges.
However I do agree with the current state of Machinist, it is in trouble but I do believe that my rework of the job would at least let it do a bit of support but less than the other Physical Ranged, while still doing a lot more damage due to being a riskier job and being more difficult as a result. At the very least, it keeps the identity as a Physical Ranged but also will finally give it the identity of being the strongest Physical Ranged job.