I checked in the book, its page 67 in french edition, you are right. Same in RQ2 with +5 SR.
RQ3 are writing for a archer who take his arrow one by one from his quiver. You are right about this. But how many arrow can you get in your hand without effect on yours shots? In videos, i see archers firing to very close target. So you can imagine to give a -5% for each arrow in hand, for example. And what about range? If you shot really quick, you can't draw your bow enought to shot long distance.
yes reality wins, but in a game, we need to have simple rules (for my opinion). Thats why i prefer RQ2/RQ3 to others ones like RQ6 or RQawful. But really thank you, MJ Sadique, i just rode rules about fishnet in "Le Maitre des Runes", thats will be helpfull because my first scenario will be at badside in Pavis.