Not sure if this has been suggested elsewhere before, but can choice be implemented in the Daily/Weekly PO instead of mandatory with a single reroll? As in, have a pool of generated objectives and give players a choice of two out of, say, three to five. For example, the pool could include flashpoints/rampages/PvP for daily objectives and operations/PvP/increased number of flashpoints (or other things) for weekly objectives. Being able to choose from a visible list would be much more preferable to a hidden one with a single shot-in-the-dark reroll.

Or do what ESO's "Endeavours" system does, with a list of things to do, and you can do whichever of them you want to do, up to N. (In ESO, it's "any three of five", but SWTOR GS would, prresumably, be "any two of five".)