I always back onto a beach. I've been doing it for years with various sizes of boats, it works perfectly.
I whack on a shorty wetsuit only worn to the waist as neoprene shorts, line the stern up with the departure area, give it a blap to get the boat going astern, switch off and fully trim, the boat should serenely drift towards the beach. The waves/slop then hit the pointy end where they have least effect, I, in my shorty shorts
hop in and hold on to either the lifelines or the frame to keep her off of the sand and pointing out to sea, the gang depart over the end of the boat which is nearest to the water.
When all out, give it a shove, hop in and anchor off. Repeat for reloading.
I've seen the pointy end first approach go wrong often. Usually, the action of the sea throws the stern around and the boat ends up broadsided on the beach being violently rocked from side to side which can lead to a full swamping.