It sounds like some very "unfriendly" kiters that did not help, true
Would just add some other views that MIGHT contribute to the picture that "noone helps" :
1. In waves, it might be impossible to get a lost board "retrieved" - as there can be big waves where you are, and not possible - or close to a reef, so not safe.
(I dont know in the specific case - but it is often the case...)
2. In the early days, some tried helping others relaunching their kite, when down.
That is a thing of the past - as you will most often NOT be able to help at all, and the risk for getting yourself or both kiters in danger by tangling or getting tangled in the kitelines, is huge !
So thats why most kiters would (and should) just pass by, instead of trying to help. But a word like "are you okay" or similar would be good
3. Difficult/impossible for many, to recover a board, as this takes some practice - and with kites today having no stopper most of them - it can be REALLY difficult to kite with another board in your hands (especially a big waveboard can be impossible).
In the early days we used stopper balls, and had small TT boards, so easy to recover a board. Not that easy anymore without stoppers and having big boards.
4. A typical problem seen (too) often:
Newbee going out to the lee of the rest, so he/she does not disturb.
Having difficulties holding ground, and getting longer and longer downwind.
When so far away, that difficult to see - the kite goes down...
Is the kiter in trouble ?
You dont know...
Who should ride a mile downwind to check ? Maybe for no reason ? You can not expect the whole pack to ride downwind in such a situation
I've seen it many times - and I always tell students or other newbees, to kite UPWIND from the spot, if possible !
Because they might drift into the "field" if they mess up - but hey, then they will get help every time
And we as experienced has to bear away anyway, and can easily look around upwind before doing tricks and jumps , so thats no problem (unless you are an ego idiot of course - but I dont hope there are many of these out there)
And IF they have to go out to leeward, then my advice always is: STOP as many times as you possibly can, and walk upwind on the shore !
For two reasons - one is the safety aspect, as mentioned in 4, which is very important.
The other is the pure benefit gaining by having to think a bit over what you are doing out there, while you walk back, and to relax and recover muscles... (beginners use ALL the muscles, both those needed, but also every other muscle is tight, to almost no avail, so very important).
You get the same amount of time on the water this way, just more safe, and more power, and closer to the others if you want to be social in between, or having your kite taken down.
There are only benefits this way - the difficult part is to KNOW to stop and walk upwind, while you are having a blast out there
So no, I dont think kitesurfers are "unfriendly" really, but in some situations it might look this way
Just another view on things....
Kindly, Peter Frank