I think people are making the bah change a lot more complicated than need be because of very abstract numbers, notably when they say « £500 for 1 pax you get 500. £500 for two pax each gets 250 » because the point is if you book for several people it will cost a lot more as you add a second, third etc plane ticket.

in the old system, you’d get tps for flights only - each passenger would get tps for their own flights based on distance and that was it. Now, in effect, each pax still gets tps for their own flights, but based on spend instead, and the only thing that changes is that you additionally get tps based on other bah spend (hotel or car or both) and think of that part as equally shared between the travellers. of course the value of those tps on extra spend depends on what else you buy: if it’s a £15/day car rental a share of that will be half a peanut, if you are booking the presidential suite at the Ritz it will amount to a lot more than you’d get from the flights alone.

of course in the meantime 1) the double TP offer is discontinued so if you compare to the relatively short period when we got that most people will lose out unless booking bah with cheap flight component (eg discounted y) and expensive hotel and 2) the while earning scheme is now badly devalued anyway so what you get is badly devalued on bah too but that’s nothing to do with the sharing element, just with the new programme being rubbish.

To me, even with the bah double tp promotion, booking a bah was at best a tangential proposition. That’s because I’m diamond (previously plat but still) with Accor, Hilton and a few others and I value the perks and rewards of the hotel programmes more than the extra tps I didn’t really need anyway. I have booked some double tp bahs but really only when going to a place with cheap non alliance hotels to book into, or when I’d book a second room direct with my perks whilst letting others use the bah room.

with the changes, I’d consider booking a bah totally useless, but not because of the sharing, just because bah hotel rates are not great anyway, typically a lot worse than booking direct, and booking direct is vastly more beneficial both in terms of perks and rewards. The better/more expensive the hotel, the worse the bah value proposition gets too as hotel programmes are systematically a lot more generous and as you tap into hotels covered by Virtuoso, FHR and the likes which give significant perks (free breakfast, free upgrades, free hotel credit etc) as well as being cancellable and paid later. I would add that as I menti on bed many times, I find that the bah level of service has gone down the drains too - way more rigid/unaccommodating than before, balance due a lot earlier than before etc.

So BAH has moved from « mostly no » to « are you completely deranged? » for me with the new earning system and the end of double tps, but wholly unrelated to the sharing mechanism which is in no way new.

It’s just that now you share crumbs instead of sharing the loaf.