too much point weight is when you like to take longer shots but the arrow just seems to always give up and dive down the very last second,,, or you just can't reach the far targets..
my opinion is point weight is not only for matching arrows, it also has to match your mind.. some folks need a lighter flatter flying arrow to be confident and overall just happy, they usually won't settle for heavy short range logs OR and arrow with too much hang time..
then there's the other folks who want to be closer and like taking closer shots so the flight distance isn't a problem but they also want the heaviest arrow possible for other reasons.
I usually like very heavy arrows from my faster bows and medium weight arrows form my softer shooting bows.