It would also have the effect of drawing out battles more. I see a huge parallel between the inspiration between Carrier Battles and WWII Pacific theatre. Battles over tiny islands would go on for months at a time, and it wasn't really an option to just bring a few warships alongside the island and shell it until all the enemy resistence suddenly stopped. It was necessary to send troops ashore, and systematically root out all enemy strongholds, which still took a long time, but was generally faster than trying to pick them off at a distance
Then, Planetary Bombardment Missiles become the equivalent of nukes, ICBMs. No precision necessary, just fling it in the general direction of those English pig dogs, and let the massive taunt defeat them
