If drop chances are low and packs don't exist, then you end up with common situations where you have ships with no weapons available to outfit them or carriers but no fighter blueprints. It doesn't work very well for gameplay since your faction can only use stuff that you have blueprints for. Maybe if the game went more in the direction of interacting with factions to get stuff (where you could import ships/weapons from a faction if your relationship is good) then blueprints could be rarer, but as it stands, that would not work.
Also, are you referring to drop chances in exploration (research stations etc.) or from raiding? I feel like exploration drop chances aren't super high but maybe raiding is worse. I don't raid very much.
