Hmmm, it would seem to me that pointy is better. Anything to reduce drag would improve efficiency; kind of like a belly flop vs a swan dive. Maybe the flat nose helps the boat
rise up a little as it gains speed.
I have a 1982 Cape Dory
36 and it's pointy. Cape Dory
was never a mass production boat
and is also no longer in business, so maybe pointy is expensive and mid range sail boats need to be more cost conscious?
There's bound to be an Engineer
that'll chime in here soon and explain pointy vs flat amd the benefits and drawbacks for each setup.