Because this node hunting is fun in theory but not really in practice.
So far I only had 3 situations where people actually contested meaningfully. One time I had lots of fun running around chasing an equal sized, equal shipped fleet from TEST in Detorid with many small engagements; the other time I lost a ship because the defenders screwed up and I wasted 30 minutes for nothing; the last time I had to chase around the constellation trying to get rid of T1 haulers that just kept coming back, in the end we managed but that was not really enjoyable.
Most of the time, though, it was either an uncontested node grind or it was not feasible to fight because completely out of balance numbers disadvantage. The same was obviously also the case in the Dominion sov system where people could just dump big fleets on your SBU defending or attacking fleet, but at least it was over in a couple of minutes.