I think PLS works partially in ways clearly not ideal. Not sure if these are in any priority list to be fixed and actually not sure how these should be fixed either. Therefore PLS likely stays like it is for a long time. I think the flaws are much bigger than any "gameable" mechanics of Production Queue so hard to see PLS taking any priority in most serious games.
Regarding Privateers in PLS I think there are some advantages. The fact that Emork managed to do without Refineries at all kind of amazes me, but Privateers are so fuel efficient and in ideal cases get their combat fleets delivered to the front lines by the enemies themselves that it makes sense. With one game now under my belt I think fuel is by far the biggest limit of almost all races in PLS.
Also the ability to expand fast early and react with superior speed are very important in PLS. It doesn't help much if you can build a huge fleet somewhere if it takes ages to get it to the front lines. Any kind of logistics are naturally double efficient too with double speed.
Show Media Item - Thanks for the report Emork! I think PLS works partially...